CN106208021A - A kind of wireless data transmission terminal device - Google Patents
A kind of wireless data transmission terminal device Download PDFInfo
- Publication number
- CN106208021A CN106208021A CN201610699450.3A CN201610699450A CN106208021A CN 106208021 A CN106208021 A CN 106208021A CN 201610699450 A CN201610699450 A CN 201610699450A CN 106208021 A CN106208021 A CN 106208021A
- Authority
- CN
- China
- Prior art keywords
- diode
- resistance
- module
- data transmission
- terminal device
- 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.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/045—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage adapted to a particular application and not provided for elsewhere
- H02H9/046—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage adapted to a particular application and not provided for elsewhere responsive to excess voltage appearing at terminals of integrated circuits
Abstract
The invention discloses a kind of wireless data transmission terminal device, including microcontroller, wireless communication module RFID module and for microcontroller, wireless communication module RFID module provide electric energy power module, described wireless communication module, RFID module is all connected with on a microcontroller, and the power output end of described power module connects electrostatic discharge protection circuit；Described electrostatic discharge protection circuit includes buffer circuit, leadage circuit and the on-off circuit being sequentially connected with；It has electrostatic defending effect, it is to avoid hindering and damaging of electrostatic.
Description
Technical field
The present invention relates to wireless data transmission device field, more specifically, relate to a kind of wireless data transmission terminal
Device.
Background technology
Existing radio data-transmission equipment includes microcontroller, wireless communication module, RFID module, wireless communication module
Realizing the transmission of data, RFID module for sending the identity of wireless data transmission device in information to microcontroller.Power supply mould
Block is above-mentioned each module for power supply, and the environment used due to above-mentioned radio data-transmission equipment is more complicated, and exterior static interference is easily made
For wireless data transmission terminal, easily the performance of wireless data transmission terminal is damaged.
Summary of the invention
The present invention is to solve that above-mentioned technical problem provides a kind of wireless data transmission terminal device, it has electrostatic defending
Effect, it is to avoid hindering and damaging of electrostatic.
The present invention solves the problems referred to above and be the technical scheme is that
A kind of wireless data transmission terminal device, including microcontroller, wireless communication module, RFID module and be microcontroller,
Wireless communication module, RFID module provide the power module of electric energy, and described wireless communication module, RFID module is both connected to micro-control
On device processed, it is characterised in that: connect on the power output end of described power module and have electrostatic discharge protection circuit；
Described electrostatic discharge protection circuit includes buffer circuit, leadage circuit and the on-off circuit being sequentially connected with.
The present invention connects electrostatic discharge protection circuit on the basis of existing technology on the outfan of power module, quiet to strengthen
Electricity safeguard function, it is to avoid the electrostatic destruction to it, strengthens the stability of performance.Electrostatic is entered by the buffer circuit of electrostatic discharge protection circuit
Row buffering, electrostatic released by leadage circuit, and at leadage circuit not by time complete for electrostatic leakage, on-off circuit disconnects power supply electricity
Road, it is to avoid electrostatic interaction is in microcontroller, wireless communication module, RFID module so that it is steady operation.
As preferably, described buffer circuit includes RC series circuit.
As preferably, described leadage circuit includes the first diode, the second diode and the 3rd diode, the described 1st
The negative electrode of pole pipe and the anode of the second diode are both connected on the outfan of power module, the negative electrode of described second diode and
The negative electrode of the 3rd diode is both connected on power supply, the anode of described first diode and the equal ground connection of anode of the 3rd diode.
As preferably, described on-off circuit includes the first resistance and the second resistance being in series, described first resistance non-
Common port is connected on the outfan of power module and the not common end of the second resistance is connected on the negative electrode of the 4th diode, institute
Stating the plus earth of the 4th diode, the two ends of described second resistance are connected on two inputs of comparator, described electricity
The outfan of source module is connected with the drain electrode of field effect transistor by the 3rd resistance, and the outfan of described comparator is connected to field effect
On the grid of pipe.
Further, the resistance value ratio of described first resistance and the second resistance is 2:1.
To sum up, the invention has the beneficial effects as follows:
The present invention connects electrostatic discharge protection circuit on the outfan of power module, to strengthen antistatic protection function, it is to avoid electrostatic pair
Its destruction, strengthens the stability of performance.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the present invention.
Fig. 2 is the circuit diagram of electrostatic discharge protection circuit of the present invention.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, aobvious
So, described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the enforcement in the present invention
Example, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into
The scope of protection of the invention.
Embodiment 1:
A kind of wireless data transmission terminal device as shown in Figure 1, including microcontroller, wireless communication module, RFID module and
For microcontroller, wireless communication module, the power module of RFID module offer electric energy, described wireless communication module, RFID module
It is all connected with on a microcontroller, it is characterised in that: connect on the power output end of described power module and have electrostatic discharge protection circuit；
Described electrostatic discharge protection circuit includes buffer circuit, leadage circuit and the on-off circuit being sequentially connected with.
Embodiment 2:
As in figure 2 it is shown, electrostatic discharge protection circuit effect is refined on the basis of above-described embodiment by the present embodiment, the most described buffering electricity
Road includes RC series circuit, i.e. includes the 4th resistance R4 and the electric capacity C being in series.
Described leadage circuit includes the first diode D1, the second diode D2 and the 3rd diode D3, described one or two pole
The negative electrode of pipe D1 and the anode of the second diode D2 are both connected on the outfan of power module, the moon of described second diode D2
The negative electrode of pole and the 3rd diode D3 is both connected on power supply, the anode of described first diode D1 and the sun of the 3rd diode D3
Extremely all ground connection.The electrostatic acting on telemetering terminal equipment power port can effectively be released by this leadage circuit.Work as electrostatic
During effect, the first diode, the second diode and the 3rd diode provide a plurality of path of releasing.
Described on-off circuit includes the first resistance R1 and the second resistance R2 being in series, the not common of described first resistance R1
End is connected on the outfan of power module and the not common end of the second resistance R2 is connected on the negative electrode of the 4th diode D4, institute
Stating the plus earth of the 4th diode D4, the two ends of described second resistance R2 are connected on two inputs of comparator A, institute
The outfan stating power module is connected with the drain electrode of field effect transistor M by the 3rd resistance R3, and the outfan of described comparator A connects
On the grid of scene effect pipe M.The source electrode of field effect transistor M i.e. exports electric energy respectively to microcontroller, wireless communication module, RFID
Module.3rd resistance plays metering function, the dividing potential drop electricity that field effect transistor is constituted as stabilized switch pipe, the first resistance and the second resistance
Road, the voltage at the second resistance two ends is monitored by comparator two input, when external disturbance is made from the outfan of power module
When telemetry terminal system, the dividing potential drop of the second resistance increases, and the output signal of comparator, to turn off field effect transistor, it is achieved overvoltage is protected
Protect.4th diode is connected between the inverting input of comparator and ground, strengthens the stability of comparator.
In order to improve the voltage regulation performance of overvoltage crowbar, the resistance value ratio of described first resistance R1 and the second resistance R2 is 2:
1。
Concrete, electrostatic discharge protection circuit and static leakage circuit can use following electronic component:
First resistance R1, the second resistance R2, the 3rd resistance R3, the 4th resistance R4 can use respectively 8 kilohms, 4 kilohms, 1,000,000
Ohm, 100 ohm, the 4th diode use 1N4738；Comparator can use LM211D；First diode, the second diode D2
IN4004 can be used with the 3rd diode D3；Electric capacity C can use 10F.
As it has been described above, the present invention can preferably be realized.
Claims (5)
1. a wireless data transmission terminal device, including microcontroller, wireless communication module, RFID module be microcontroller
Device, wireless communication module, RFID module provide the power module of electric energy, and described wireless communication module, RFID module is both connected to
On microcontroller, it is characterised in that: connect on the power output end of described power module and have electrostatic discharge protection circuit；
Described electrostatic discharge protection circuit includes buffer circuit, leadage circuit and the on-off circuit being sequentially connected with.
A kind of wireless data transmission terminal device the most according to claim 1, it is characterised in that: described buffer circuit includes
RC series circuit.
A kind of wireless data transmission terminal device the most according to claim 1, it is characterised in that: described leadage circuit includes
First diode, the second diode and the 3rd diode, the negative electrode of described first diode and the anode of the second diode all connect
Being connected on the outfan of power module, the negative electrode of described second diode and the negative electrode of the 3rd diode are both connected on power supply,
The anode of described first diode and the equal ground connection of anode of the 3rd diode.
A kind of wireless data transmission terminal device the most according to claim 1, it is characterised in that: described on-off circuit includes
The first resistance being in series and the second resistance, the not common end of described first resistance is connected on the outfan of power module and
The not common end of two resistance is connected on the negative electrode of the 4th diode, the plus earth of described 4th diode, described second electricity
The two ends of resistance are connected on two inputs of comparator, and the outfan of described power module passes through the 3rd resistance and field effect
The drain electrode of pipe is connected, and the outfan of described comparator is connected on the grid of field effect transistor.
A kind of wireless data transmission terminal device the most according to claim 4, it is characterised in that: described first resistance and the
The resistance value ratio of two resistance is 2:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610699450.3A CN106208021A (en) | 2016-08-22 | 2016-08-22 | A kind of wireless data transmission terminal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610699450.3A CN106208021A (en) | 2016-08-22 | 2016-08-22 | A kind of wireless data transmission terminal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106208021A true CN106208021A (en) | 2016-12-07 |
Family
ID=57523307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610699450.3A Pending CN106208021A (en) | 2016-08-22 | 2016-08-22 | A kind of wireless data transmission terminal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106208021A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107492864A (en) * | 2017-08-21 | 2017-12-19 | 绵阳鑫阳知识产权运营有限公司 | A kind of three-level lightning protection circuit |
Citations (7)
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| CN102457934A (en) * | 2010-11-04 | 2012-05-16 | 中国人民解放军国防科学技术大学 | Landmark system based on radio frequency identification |
| CN103248034A (en) * | 2013-05-15 | 2013-08-14 | 成都市宏山科技有限公司 | Lightning protection USB flash disk |
| CN103346546A (en) * | 2013-06-28 | 2013-10-09 | 成都汉康信息产业有限公司 | Lightning protection circuit used for remote measurement terminal |
| CN104065042A (en) * | 2013-03-21 | 2014-09-24 | 昂纳信息技术（深圳）有限公司 | Power supply input protection circuit and method |
| CN104218533A (en) * | 2014-10-09 | 2014-12-17 | 上海斐讯数据通信技术有限公司 | Power input overvoltage turn-off protection circuit |
| CN204064346U (en) * | 2014-08-30 | 2014-12-31 | 华南理工大学 | A kind of aquaculture monitoring system based on WG-8010 |
| CN205038471U (en) * | 2015-08-03 | 2016-02-17 | 中兴长天信息技术(北京)有限公司 | Self -adaptation multichannel long -haul telemetry terminal |
-
2016
- 2016-08-22 CN CN201610699450.3A patent/CN106208021A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102457934A (en) * | 2010-11-04 | 2012-05-16 | 中国人民解放军国防科学技术大学 | Landmark system based on radio frequency identification |
| CN104065042A (en) * | 2013-03-21 | 2014-09-24 | 昂纳信息技术（深圳）有限公司 | Power supply input protection circuit and method |
| CN103248034A (en) * | 2013-05-15 | 2013-08-14 | 成都市宏山科技有限公司 | Lightning protection USB flash disk |
| CN103346546A (en) * | 2013-06-28 | 2013-10-09 | 成都汉康信息产业有限公司 | Lightning protection circuit used for remote measurement terminal |
| CN204064346U (en) * | 2014-08-30 | 2014-12-31 | 华南理工大学 | A kind of aquaculture monitoring system based on WG-8010 |
| CN104218533A (en) * | 2014-10-09 | 2014-12-17 | 上海斐讯数据通信技术有限公司 | Power input overvoltage turn-off protection circuit |
| CN205038471U (en) * | 2015-08-03 | 2016-02-17 | 中兴长天信息技术(北京)有限公司 | Self -adaptation multichannel long -haul telemetry terminal |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107492864A (en) * | 2017-08-21 | 2017-12-19 | 绵阳鑫阳知识产权运营有限公司 | A kind of three-level lightning protection circuit |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161207 |
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| RJ01 | Rejection of invention patent application after publication |