CN106300243A - A kind of high stability telemetry terminal system - Google Patents
A kind of high stability telemetry terminal system Download PDFInfo
- Publication number
- CN106300243A CN106300243A CN201610699109.8A CN201610699109A CN106300243A CN 106300243 A CN106300243 A CN 106300243A CN 201610699109 A CN201610699109 A CN 201610699109A CN 106300243 A CN106300243 A CN 106300243A
- Authority
- CN
- China
- Prior art keywords
- terminal system
- resistance
- diode
- telemetry terminal
- power module
- 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
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/20—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Amplifiers (AREA)
Abstract
The invention discloses a kind of high stability telemetry terminal system, including telemetry terminal system, the sensor being connected on telemetry terminal system and the power module powered for telemetry terminal system, connect between described power module and telemetry terminal system and have overvoltage crowbar, described overvoltage crowbar includes the first resistance and the second resistance being in series, the not common end of described first resistance 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, the plus earth of described 4th diode, the two ends of described second resistance are connected on two inputs of amplifier, the outfan of described power module is connected with the drain electrode of field effect transistor by the 3rd resistance, the outfan of described amplifier is connected on the grid of field effect transistor, the source electrode of described field effect transistor is connected on the power interface of telemetry terminal system, its good stability.
Description
Technical field
The present invention relates to telemetry terminal system field, in particular it relates to a kind of high stability telemetry terminal system.
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 a lot of interference easily act on telemetry terminal system, make telemetry terminal system
Stability be affected.
Summary of the invention
The present invention is to solve that above-mentioned technical problem provides a kind of high stability telemetry terminal system.
The present invention solves the problems referred to above and be the technical scheme is that
A kind of high stability telemetry terminal system, the sensor including telemetry terminal system, being connected on telemetry terminal system and for telemetry terminal system confession
The power module of electricity, connects between described power module and telemetry terminal system and has overvoltage crowbar, described overvoltage crowbar bag
Include the first resistance and the second resistance being in series, the not common end of described first resistance be 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, the plus earth of described 4th diode, and described second
The two ends of resistance are connected on two inputs of amplifier, and the outfan of described power module is imitated with field by the 3rd resistance
Should the drain electrode of pipe be connected, the outfan of described amplifier is connected on the grid of field effect transistor, and the source electrode of described field effect transistor is even
It is connected on the power interface of telemetry terminal system.Telemetering terminal equipment is improved by this programme on the basis of existing technology, at electricity
Overvoltage crowbar is connected, to strengthen its stability between source module and telemetry terminal system.The overvoltage crowbar of this programme, the 3rd
Resistance plays metering function, the bleeder circuit that field effect transistor is constituted as stabilized switch pipe, the first resistance and the second resistance, amplifier
The voltage at the second resistance two ends is monitored by two inputs, when external disturbance acts on remote measurement eventually from the outfan of power module
During end, the dividing potential drop of the second resistance increases, and the output of amplifier increases, to turn off field effect transistor, it is achieved overvoltage protection.Four or two pole
Pipe is connected between the inverting input of amplifier and ground, the stability of boster.
As preferably, the outfan of described power module is also associated with static leakage circuit.
Further, described static leakage circuit includes the first diode, the second diode and the 3rd diode, described
The negative electrode of one diode and the anode of the second diode are both connected on the outfan of power module, the moon of described second diode
The negative electrode of pole and the 3rd diode is both connected on power supply, and the anode of described first diode and the anode of the 3rd diode all connect
Ground.The static leakage circuit of this programme, can effectively release to the big electric current acting on telemetering terminal equipment power port.
When the big function of current, the first diode, the second diode and the 3rd diode provide a plurality of path of releasing.
As preferably, described field effect transistor is P-channel field-effect transistor (PEFT) pipe.
As preferably, in order to improve the voltage regulation performance of overvoltage crowbar, described first resistance and the resistance of the second resistance
Ratio is 2:1.
To sum up, the invention has the beneficial effects as follows:
The present invention connects overvoltage crowbar between power module and telemetry terminal system, to strengthen its stability.
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 high stability telemetry terminal system as shown in Figure 1, the sensor including telemetry terminal system, being connected on telemetry terminal system and be
The power module that telemetry terminal system is powered, connects between described power module and telemetry terminal system and has overvoltage crowbar, described overvoltage
Protection circuit includes the first resistance R1 and the second resistance R2 being in series, and the not common end of described first resistance R1 is connected to power supply
On the outfan of module and the not common end of the second resistance R2 is connected on the negative electrode of the 4th diode D4, described 4th diode
The plus earth of D4, the two ends of described second resistance R2 are connected on two inputs of amplifier A, described power module
Outfan is connected with the drain electrode of field effect transistor M by the 3rd resistance R3, and the outfan of described amplifier A is connected to field effect transistor M
Grid on, the source electrode of described field effect transistor M is connected on the power interface of telemetry terminal system.
Embodiment 2:
A kind of high stability telemetry terminal system as shown in Figure 1, the present embodiment optimizes on the basis of above-described embodiment, i.e. institute
State and on the outfan of power module, be also associated with static leakage circuit.Described static leakage circuit include the first diode D1,
Two diode D2 and the 3rd diode D3, the negative electrode of described first diode D1 and the anode of the second diode D2 are both connected to electricity
On the outfan of source module, the described negative electrode of the second diode D2 and the negative electrode of the 3rd diode D3 are both connected on power supply, institute
State the anode of the first diode D1 and the equal ground connection of anode of the 3rd diode D3.
Described field effect transistor M is P-channel field-effect transistor (PEFT) pipe.
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 can use 6 kilohms, 3 kilohms, 1 megohm respectively, and the four or two
Pole pipe uses 1N4738；Amplifier can use LM311；First diode, the second diode D2 and the 3rd diode D3 can use
IN4004。
As it has been described above, the present invention can preferably be realized.
Claims (5)
1. a high stability telemetry terminal system, the sensor including telemetry terminal system, being connected on telemetry terminal system and for telemetry terminal system
The power module of power supply, it is characterised in that: connect between described power module and telemetry terminal system and have overvoltage crowbar, described mistake
Voltage protection circuit includes the first resistance and the second resistance being in series, and the not common end of described first resistance is connected to power module
Outfan on and the not common end of the second resistance be connected on the negative electrode of the 4th diode, the anode of described 4th diode connects
Ground, the two ends of described second resistance are connected on two inputs of amplifier, and the outfan of described power module is by the
Three resistance are connected with the drain electrode of field effect transistor, and the outfan of described amplifier is connected on the grid of field effect transistor, and described field is imitated
Should the source electrode of pipe be connected on the power interface of telemetry terminal system.
A kind of high stability telemetry terminal system the most according to claim 1, it is characterised in that: the outfan of described power module
On be also associated with static leakage circuit.
A kind of high stability telemetry terminal system the most according to claim 2, it is characterised in that: described static leakage 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 high stability telemetry terminal system the most according to claim 1, it is characterised in that: described field effect transistor is P-channel
Field effect transistor.
A kind of high stability telemetry terminal system the most according to claim 1, it is characterised in that: described first resistance and the second electricity
The resistance value ratio of resistance is 2:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610699109.8A CN106300243A (en) | 2016-08-22 | 2016-08-22 | A kind of high stability telemetry terminal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610699109.8A CN106300243A (en) | 2016-08-22 | 2016-08-22 | A kind of high stability telemetry terminal system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106300243A true CN106300243A (en) | 2017-01-04 |
Family
ID=57662043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610699109.8A Pending CN106300243A (en) | 2016-08-22 | 2016-08-22 | A kind of high stability telemetry terminal system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106300243A (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 (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103248034A (en) * | 2013-05-15 | 2013-08-14 | 成都市宏山科技有限公司 | Lightning protection USB flash disk |
| CN103346530A (en) * | 2013-06-28 | 2013-10-09 | 成都汉康信息产业有限公司 | Telemetering terminal protection circuit |
| 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 |
| CN205960625U (en) * | 2016-08-22 | 2017-02-15 | 成都众山科技有限公司 | Good telemetering measurement terminal of stability |
-
2016
- 2016-08-22 CN CN201610699109.8A patent/CN106300243A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103248034A (en) * | 2013-05-15 | 2013-08-14 | 成都市宏山科技有限公司 | Lightning protection USB flash disk |
| CN103346530A (en) * | 2013-06-28 | 2013-10-09 | 成都汉康信息产业有限公司 | Telemetering terminal protection circuit |
| 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 |
| CN205960625U (en) * | 2016-08-22 | 2017-02-15 | 成都众山科技有限公司 | Good telemetering measurement terminal of stability |
Non-Patent Citations (1)
| Title |
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| HTTP://WWW.DZSC.COM/DZBBS/20061104/20076518129796159.HTML: ""过压保护电路"", 《HTTP://WWW.DZSC.COM/DZBBS/20061104/20076518129796159.HTML》 * |
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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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170104 |