CN106153078A - A kind of telemetry terminal system with electrostatic defending - Google Patents
A kind of telemetry terminal system with electrostatic defending Download PDFInfo
- Publication number
- CN106153078A CN106153078A CN201610699104.5A CN201610699104A CN106153078A CN 106153078 A CN106153078 A CN 106153078A CN 201610699104 A CN201610699104 A CN 201610699104A CN 106153078 A CN106153078 A CN 106153078A
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- CN
- China
- Prior art keywords
- terminal system
- resistance
- telemetry terminal
- audion
- field effect
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
- G01D3/08—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups with provision for safeguarding the apparatus, e.g. against abnormal operation, against breakdown
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
nullThe invention discloses a kind of telemetry terminal system with electrostatic defending，Including telemetry terminal system、The sensor being connected on telemetry terminal system and the power module powered for telemetry terminal system，Connect between power module and telemetry terminal system and have electrostatic discharge protection circuit，Electrostatic discharge protection circuit includes audion、Field effect transistor and the first resistance being connected between power module and telemetry terminal system，Transistor base be connected with emitter stage by the 4th resistance and emitter stage is connected on the common port of telemetry terminal system and the first resistance，The colelctor electrode of audion is connected with the grid of field effect transistor and by the 5th resistance eutral grounding，The drain electrode of field effect transistor is connected and source ground with the emitter stage of audion，Connect on the emitter stage of audion to have and be in series and the second resistance of other end ground connection and the 3rd resistance，The common port of the second resistance and the 3rd resistance is connected on the reference edge of adjustable simulation stabilivolt，The negative electrode of adjustable simulation stabilivolt is connected in the base stage of audion and plus earth.
Description
Technical field
The present invention relates to telemetry terminal system device field, in particular it relates to a kind of telemetry terminal system with electrostatic defending.
Background technology
Telemetering terminal is exclusively used in hydrological monitoring and geology monitoring, it is achieved be acquired by sensing data, by various
Communication networking model is uploaded to collect central station, and central station carries out Warning Service with carrying out model calculation according to the data collected.In
Center station can carry out long-haul telemetry, Remote configuration, remote maintenance to remote terminal.Telemetry terminal system plays during monitoring and compares
More important effect.Existing telemetering terminal equipment includes telemetry terminal system, the sensor being connected on telemetry terminal system and is remote measurement
The power module that terminal is powered.Telemetry terminal system is mostly in outdoor application, and telemetry terminal system is easily damaged by the effect of electrostatic.
Summary of the invention
The present invention is to solve that above-mentioned technical problem provides a kind of telemetry terminal system with electrostatic defending.
The present invention solves the problems referred to above and be the technical scheme is that
A kind of telemetry terminal system with electrostatic defending, the sensor including telemetry terminal system, being connected on telemetry terminal system and for remote measurement
The power module that terminal is powered, connects between described power module and telemetry terminal system and has electrostatic discharge protection circuit, described electrostatic defending
Circuit includes audion, field effect transistor and the first resistance being connected between power module and telemetry terminal system, described audion
Base stage is connected with emitter stage by the 4th resistance and emitter stage is connected on the common port of telemetry terminal system and the first resistance, and described three
The colelctor electrode of pole pipe is connected with the grid of field effect transistor and by the 5th resistance eutral grounding, the drain electrode of described field effect transistor and audion
Emitter stage be connected and source ground, the emitter stage of described audion connects to be had and is in series and the second resistance of other end ground connection
With the 3rd resistance, the common port of described second resistance and the 3rd resistance is connected on the reference edge of adjustable simulation stabilivolt, described
The negative electrode of adjustable simulation stabilivolt is connected in the base stage of audion and plus earth.This programme is the most right
Telemetering terminal equipment improves, and connects electrostatic discharge protection circuit, electrostatic discharge protection circuit pair between power module and telemetry terminal system
The electrostatic acting on telemetering terminal equipment protects, and improves the antistatic capacity of telemetering terminal equipment, strengthens telemetry terminal system
The protection that outside is hindered and damaged by equipment.Electrostatic discharge protection circuit second resistance of this programme, three resistance the 4th resistance and can
Mode transfer is intended stabilivolt and is constituted mu balanced circuit, to being supplied to rear stage after the output voltage stabilizing again of power module, and audion, field effect
Should manage and the 5th resistance constitutes the major part of electrostatic defending, when electrostatic acts on telemetering terminal equipment, i.e. from power module
The electric current of the first resistance increases, triode ON, and corresponding fet gate level increases and turns on, thus limits and flow through
The electric current of adjustable simulation stabilivolt, protects the telemetry terminal system of rear class.
As preferably, described audion is PNP type triode, and described field effect transistor is N-channel field effect transistor.
As preferably, described adjustable simulation stabilivolt is TL431.TL431 is a accurate stabilivolt, has good heat
Stability, can effectively improve the protective action to electrostatic.
As preferably, described sensor be in pressure transducer, range sensor, temperature sensor, flow transducer extremely
Few one.
To sum up, the invention has the beneficial effects as follows:
The present invention connects electrostatic discharge protection circuit between power module and telemetry terminal system, and electrostatic discharge protection circuit is to acting on remote measurement eventually
The electrostatic of end equipment protects, and improves the antistatic capacity of telemetering terminal equipment, strengthens telemetering terminal equipment and does outside
Disturb the protection of destruction.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the present invention.
Fig. 2 is the circuit diagram of the 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 telemetry terminal system with electrostatic defending as depicted in figs. 1 and 2, including telemetry terminal system, is connected on telemetry terminal system
Sensor and the power module powered for telemetry terminal system, connect between described power module and telemetry terminal system and have electrostatic defending electricity
Road, described electrostatic discharge protection circuit includes audion T, field effect transistor M and be connected between power module and telemetry terminal system first
Resistance R1, described audion T base stage is connected with emitter stage by the 4th resistance R4 and emitter stage is connected to telemetry terminal system and
On the common port of one resistance R1, the described colelctor electrode of audion T is connected with the grid of field effect transistor M and is connect by the 5th resistance R5
Ground, the drain electrode of described field effect transistor M is connected and source ground with the emitter stage of audion T, and the emitter stage of described audion T connects
It is connected to be in series and the second resistance R2 and the 3rd resistance R3 of other end ground connection, described second resistance R2 and the public affairs of the 3rd resistance R3
End is connected on the reference edge of adjustable simulation stabilivolt D altogether, and the negative electrode of described adjustable simulation stabilivolt D is connected to audion T's
In base stage and plus earth.
Embodiment 2:
Described audion T is PNP type triode, and described field effect transistor M is N-channel field effect transistor.
Described adjustable simulation stabilivolt D is TL431.
Described sensor is at least one in pressure transducer, range sensor, temperature sensor, flow transducer.
Embodiment 3:
Concrete, electrostatic discharge protection circuit can use specific implementation:
First resistance R1, the second resistance R2, the 3rd resistance R3, the 4th resistance R4, the 5th resistance R5 can be respectively adopted 10 kilohms,
41 megohms, 25 megohms, 10 megohms, 20 megohms.
As it has been described above, the present invention can preferably be realized.
Claims (4)
1. a telemetry terminal system with electrostatic defending, it is characterised in that: include telemetry terminal system, the biography being connected on telemetry terminal system
Sensor and the power module powered for telemetry terminal system, connect between described power module and telemetry terminal system and have electrostatic discharge protection circuit,
Described electrostatic discharge protection circuit includes audion, field effect transistor and the first resistance being connected between power module and telemetry terminal system,
Described transistor base is connected with emitter stage by the 4th resistance and emitter stage is connected to telemetry terminal system and the public affairs of the first resistance
Altogether on end, the colelctor electrode of described audion is connected with the grid of field effect transistor and by the 5th resistance eutral grounding, described field effect transistor
Drain electrode be connected and source ground with the emitter stage of audion, on the emitter stage of described audion connect be in series and the other end
Second resistance of ground connection and the 3rd resistance, the common port of described second resistance and the 3rd resistance is connected to adjustable simulation stabilivolt
On reference edge, the negative electrode of described adjustable simulation stabilivolt is connected in the base stage of audion and plus earth.
A kind of telemetry terminal system with electrostatic defending the most according to claim 1, it is characterised in that: described audion is
PNP type triode, described field effect transistor is N-channel field effect transistor.
A kind of telemetry terminal system with electrostatic defending the most according to claim 1, it is characterised in that: described adjustable simulation is steady
Pressure pipe is TL431.
A kind of telemetry terminal system with electrostatic defending the most according to claim 1, it is characterised in that: described sensor is pressure
In force transducer, range sensor, temperature sensor, flow transducer at least one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610699104.5A CN106153078A (en) | 2016-08-22 | 2016-08-22 | A kind of telemetry terminal system with electrostatic defending |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610699104.5A CN106153078A (en) | 2016-08-22 | 2016-08-22 | A kind of telemetry terminal system with electrostatic defending |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106153078A true CN106153078A (en) | 2016-11-23 |
Family
ID=57342224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610699104.5A Pending CN106153078A (en) | 2016-08-22 | 2016-08-22 | A kind of telemetry terminal system with electrostatic defending |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106153078A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101345418A (en) * | 2008-09-03 | 2009-01-14 | 海鹰企业集团有限责任公司 | Electricity disturbance absorption circuit of vehicle-mounted power supply |
| CN101476693A (en) * | 2009-01-20 | 2009-07-08 | 汉得利（常州）电子有限公司 | Caution flasher |
| CN201946101U (en) * | 2010-11-10 | 2011-08-24 | 四川远大众和科技有限公司 | Intelligent telemetry terminal |
| CN202648748U (en) * | 2012-06-01 | 2013-01-02 | 唐山现代工控技术有限公司 | Integral radar water level remote measuring terminal |
| CN202737514U (en) * | 2012-07-24 | 2013-02-13 | 飞毛腿(福建)电子有限公司 | Circuit guaranteeing equalization charge of each battery based on multi-section series-connection batteries |
| 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 |
| CN103346545A (en) * | 2013-06-28 | 2013-10-09 | 成都汉康信息产业有限公司 | Telemetering terminal electrostatic protection circuit |
| CN103475200A (en) * | 2013-08-27 | 2013-12-25 | 崧顺电子（深圳）有限公司 | Anti-surge circuit |
| CN104319754A (en) * | 2014-10-29 | 2015-01-28 | 成都汉康信息产业有限公司 | Overvoltage protective type encryption remote measuring terminal |
| CN205960637U (en) * | 2016-08-22 | 2017-02-15 | 成都众山科技有限公司 | Telemetering measurement terminal equipment with electrostatic protection |
-
2016
- 2016-08-22 CN CN201610699104.5A patent/CN106153078A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101345418A (en) * | 2008-09-03 | 2009-01-14 | 海鹰企业集团有限责任公司 | Electricity disturbance absorption circuit of vehicle-mounted power supply |
| CN101476693A (en) * | 2009-01-20 | 2009-07-08 | 汉得利（常州）电子有限公司 | Caution flasher |
| CN201946101U (en) * | 2010-11-10 | 2011-08-24 | 四川远大众和科技有限公司 | Intelligent telemetry terminal |
| CN202648748U (en) * | 2012-06-01 | 2013-01-02 | 唐山现代工控技术有限公司 | Integral radar water level remote measuring terminal |
| CN202737514U (en) * | 2012-07-24 | 2013-02-13 | 飞毛腿(福建)电子有限公司 | Circuit guaranteeing equalization charge of each battery based on multi-section series-connection batteries |
| 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 |
| CN103346545A (en) * | 2013-06-28 | 2013-10-09 | 成都汉康信息产业有限公司 | Telemetering terminal electrostatic protection circuit |
| CN103475200A (en) * | 2013-08-27 | 2013-12-25 | 崧顺电子（深圳）有限公司 | Anti-surge circuit |
| CN104319754A (en) * | 2014-10-29 | 2015-01-28 | 成都汉康信息产业有限公司 | Overvoltage protective type encryption remote measuring terminal |
| CN205960637U (en) * | 2016-08-22 | 2017-02-15 | 成都众山科技有限公司 | Telemetering measurement terminal equipment with electrostatic protection |
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Application publication date: 20161123 |
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| RJ01 | Rejection of invention patent application after publication |