CN205580661U - Wireless pressure transmitter based on wifi communication - Google Patents
Wireless pressure transmitter based on wifi communication Download PDFInfo
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- CN205580661U CN205580661U CN201620358871.5U CN201620358871U CN205580661U CN 205580661 U CN205580661 U CN 205580661U CN 201620358871 U CN201620358871 U CN 201620358871U CN 205580661 U CN205580661 U CN 205580661U
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Abstract
The utility model discloses a wireless pressure transmitter based on wifi communication, provide the power module of electric energy, its characterized in that including pressure collecting ware, treater with for the treater: the pressure collecting ware links to each other with the treater through signal conditioning circuit, buffer circuit and the AD converting circuit who connects gradually, signal conditioning circuit is including the filter circuit and the amplifier circuit that connect gradually, still be connected with temperature acquisition device and communication module on the treater, communication module is the wifi module, be connected with surge suppression circuit between power module and the treater, its reliability is high.
Description
Technical field
This utility model relates to electronic measuring device field, in particular it relates to a kind of wireless pressure transmitter based on wifi communication.
Background technology
Industrial circle, for the collection of pressure signal, is mainly measured by pressure transmitter, and traditional pressure transmitter is all two-wire system or four-wire system mode transmits data.When installing and using conventional pressure transmitter, it is necessary to laying cable, the most not only cable cost must take into, and the labour cost thus brought and maintenance cost in the future all must take into.And some occasion cable is difficult to lay, for the transmitter of supplementary installation, then must again excavate cable duct and lay cable, cost substantially rises.Existing pressure transducer, it uses the processor of Micro Energy Lose, it is not necessary to cable is powered, and installs the most more convenient.But, due to pressure transducer use environment changeable, interference source is many, and the reliability how improving wireless pressure transmitter seems particularly significant.
Utility model content
This utility model provides a kind of wireless pressure transmitter based on wifi communication to solve above-mentioned technical problem, and its reliability is high.
The technical scheme in the invention for solving the above technical problem is:
A kind of wireless pressure transmitter based on wifi communication, including pressure acquisition device, processor and the power module providing electric energy for processor, it is characterized in that: described pressure acquisition device is connected with processor with A/D convertor circuit by the signal conditioning circuit being sequentially connected with, isolation circuit, and described signal conditioning circuit includes filter circuit and the amplifying circuit being sequentially connected with；Being also associated with temperature collecting device and communication module on described processor, described communication module is wifi module, and connecting between described power module and processor has surge restraint circuit.The most filtered circuit of signal, amplifying circuit, isolation circuit and the A/D convertor circuit of the pressure acquisition device collection of wireless pressure transmitter of the present utility model are sent to processor, wifi module realizes the transmission of signal, temperature collecting device collecting temperature, processor realizes temperature-compensating according to temperature, improves reliability and the accuracy of data.Isolation circuit limits the direction of transfer of signal, it is to avoid the external signal interference to pressure transducer, strengthens the reliability of data acquisition.Power module provides working power for processor, moment at switch, easily cause surge, surge restraint circuit is set between power module and processor, can effectively avoid switching moments surge on the destruction of wireless pressure transmitter internal circuit and impact, the effective reliability improving wireless pressure transmitter.
As preferably, described isolation circuit is optical coupling isolation circuit.Optical coupling isolation circuit utilizes the unipolarity of photo-coupler to limit signal transmission direction, and its circuit structure is simple, and be those skilled in the art all known to technology, it is easy to make.
As preferably, described surge restraint circuit includes that the 3rd resistance being connected between power module and processor, described 3rd resistance two ends are connected to the first surge restraint circuit and the second surge restraint circuit.3rd resistance plays metering function, it is to avoid the big electric current destruction to internal circuit during surge.Surge restraint circuit uses two grades of modes of releasing, it is ensured that the reliability of surge and completeness.
Further, described first surge restraint circuit includes the first resistance and the first Transient Suppression Diode being in series, one end of described first resistance and the 3rd resistance are connected with the common port of power module and the other end is connected on the negative electrode of the first Transient Suppression Diode, the plus earth of described first Transient Suppression Diode.When on/off surge produces, the first Transient Suppression Diode transient switching, surge of releasing.Use this circuit, its simple in construction, with low cost.
Further, described second surge restraint circuit includes the second resistance and the second Transient Suppression Diode being in series, one end of described second resistance and the 3rd resistance are connected with the common port of processor and the other end is connected on the negative electrode of the second Transient Suppression Diode, the plus earth of described second Transient Suppression Diode.
To sum up, the beneficial effects of the utility model are:
This utility model utilizes isolation circuit to limit signal transmission direction, and arranges surge protection circuit on power end, improves the reliability of wireless pressure transmitter.
Accompanying drawing explanation
Fig. 1 is theory diagram of the present utility model.
Fig. 2 is the circuit structure diagram of this utility model surge surge restraint circuit.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, 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 this utility model protection.
Embodiment 1:
A kind of based on wifi communication wireless pressure transmitter as shown in Figure 1, including pressure acquisition device, processor and the power module providing electric energy for processor, it is characterized in that: described pressure acquisition device is connected with processor with A/D convertor circuit by the signal conditioning circuit being sequentially connected with, isolation circuit, and described signal conditioning circuit includes filter circuit and the amplifying circuit being sequentially connected with；Being also associated with temperature collecting device and communication module on described processor, described communication module is wifi module, and connecting between described power module and processor has surge restraint circuit.
Embodiment 2:
A kind of based on wifi communication wireless pressure transmitter as shown in Figure 1, isolation circuit is refined on the basis of above-described embodiment by the present embodiment, and the most described isolation circuit is optical coupling isolation circuit.
Embodiment 3:
A kind of based on wifi communication wireless pressure transmitter as depicted in figs. 1 and 2, surge restraint circuit is refined on the basis of above-described embodiment by the present embodiment, the most described surge restraint circuit includes that the 3rd resistance R3 being connected between power module and processor, described 3rd resistance R3 two ends are connected to the first surge restraint circuit and the second surge restraint circuit.
Described first surge restraint circuit includes the first resistance R1 and the first Transient Suppression Diode TVS1 being in series, one end of described first resistance R1 and the 3rd resistance R3 are connected with the common port of power module and the other end is connected on the negative electrode of the first Transient Suppression Diode TVS1, the plus earth of described first Transient Suppression Diode TVS1.
Described second surge restraint circuit includes the second resistance R2 and the second Transient Suppression Diode TVS2 being in series, one end of described second resistance R2 and the 3rd resistance R3 are connected with the common port of processor and the other end is connected on the negative electrode of the second Transient Suppression Diode TVS2, the plus earth of described second Transient Suppression Diode TVS2.
As it has been described above, this utility model can preferably be realized.
Claims (5)
1. a wireless pressure transmitter based on wifi communication, including pressure acquisition device, processor and the power module providing electric energy for processor, it is characterized in that: described pressure acquisition device is connected with processor with A/D convertor circuit by the signal conditioning circuit being sequentially connected with, isolation circuit, and described signal conditioning circuit includes filter circuit and the amplifying circuit being sequentially connected with；Being also associated with temperature collecting device and communication module on described processor, described communication module is wifi module, and connecting between described power module and processor has surge restraint circuit.
A kind of wireless pressure transmitter based on wifi communication the most according to claim 1, it is characterised in that: described isolation circuit is optical coupling isolation circuit.
A kind of wireless pressure transmitter based on wifi communication the most according to claim 1, it is characterized in that: described surge restraint circuit includes that the 3rd resistance being connected between power module and processor, described 3rd resistance two ends are connected to the first surge restraint circuit and the second surge restraint circuit.
A kind of wireless pressure transmitter based on wifi communication the most according to claim 3, it is characterized in that: described first surge restraint circuit includes the first resistance and the first Transient Suppression Diode being in series, one end of described first resistance and the 3rd resistance are connected with the common port of power module and the other end is connected on the negative electrode of the first Transient Suppression Diode, the plus earth of described first Transient Suppression Diode.
A kind of wireless pressure transmitter based on wifi communication the most according to claim 3, it is characterized in that: described second surge restraint circuit includes the second resistance and the second Transient Suppression Diode being in series, one end of described second resistance and the 3rd resistance are connected with the common port of processor and the other end is connected on the negative electrode of the second Transient Suppression Diode, the plus earth of described second Transient Suppression Diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620358871.5U CN205580661U (en) | 2016-04-26 | 2016-04-26 | Wireless pressure transmitter based on wifi communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620358871.5U CN205580661U (en) | 2016-04-26 | 2016-04-26 | Wireless pressure transmitter based on wifi communication |
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| CN205580661U true CN205580661U (en) | 2016-09-14 |
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| CN201620358871.5U Active CN205580661U (en) | 2016-04-26 | 2016-04-26 | Wireless pressure transmitter based on wifi communication |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105699004A (en) * | 2016-04-26 | 2016-06-22 | 成都众山科技有限公司 | Wireless pressure transmitter based on wifi |
| CN106532669A (en) * | 2016-11-14 | 2017-03-22 | 成都九五测控科技有限公司 | Microcomputer type protective measurement control apparatus |
| CN107246932A (en) * | 2017-07-14 | 2017-10-13 | 成都众山科技有限公司 | Low-power consumption pressure transmitter control system |
| CN108955993A (en) * | 2018-05-23 | 2018-12-07 | 易彩科技（杭州）有限责任公司 | A kind of ductwork pressure transmitter of super low-power consumption |
-
2016
- 2016-04-26 CN CN201620358871.5U patent/CN205580661U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105699004A (en) * | 2016-04-26 | 2016-06-22 | 成都众山科技有限公司 | Wireless pressure transmitter based on wifi |
| CN106532669A (en) * | 2016-11-14 | 2017-03-22 | 成都九五测控科技有限公司 | Microcomputer type protective measurement control apparatus |
| CN107246932A (en) * | 2017-07-14 | 2017-10-13 | 成都众山科技有限公司 | Low-power consumption pressure transmitter control system |
| CN108955993A (en) * | 2018-05-23 | 2018-12-07 | 易彩科技（杭州）有限责任公司 | A kind of ductwork pressure transmitter of super low-power consumption |
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