CN205120743U - Fast appearance of radio magnetic current - Google Patents
Fast appearance of radio magnetic current Download PDFInfo
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- CN205120743U CN205120743U CN201520863224.5U CN201520863224U CN205120743U CN 205120743 U CN205120743 U CN 205120743U CN 201520863224 U CN201520863224 U CN 201520863224U CN 205120743 U CN205120743 U CN 205120743U
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Abstract
The utility model discloses a fast appearance of radio magnetic current, include: the fast appearance of electricity magnetic current, signal processing module, microcontroller module and wireless data transceiver module, wherein, the velocity of flow data output end of the fast appearance of electricity magnetic current with signal processing module's data input end links to each other, signal processing module's data signal output with the data input end of microcontroller module links to each other, just signal processing module's processing parameter input with the processing parameter control end of microcontroller module links to each other, the format data output end of microcontroller module with the data input end of wireless data transceiver module links to each other, just the processing parameter receiving terminal of microcontroller module with the wireless data transceiver module is handled the touchstone S -parameter output end and is linked to each other. The utility model discloses a fast appearance of radio magnetic current through wireless mode transmitting data, has saved loaded down with trivial details wiring process in earlier stage, has saved the cost, and has had higher measurement accuracy.
Description
Technical field
The utility model relates to wireless communication technique and field of measuring technique, particularly relates to a kind of wireless electromagnetic current meter.
Background technology
Fluid-velocity survey is a requisite part in model test, existing current meter main species is divided into rotating element current meter, acoustics point current meter, electric flow meter, electromagnetism point current meter, optical current metre, wherein electromagnetic current metre is simple because installing, precision is high, can measure the advantages such as two-dimentional flow velocity and obtain widespread use.
At present, the electromagnetic current metre applied in Most models is wired current meter (wired electromagnetic current metre), and the flow speed data of current meter collection is sent to data processing centre (DPC) or repeater by communication cable.There is a lot of weak point in use in these wired electromagnetic current metres: if 1 flow velocity collection point often just needs multiple stage current meter, and this needs to arrange a lot of transmission cables; 2, when transmission range is distant, signal attenuation is serious, and corrupt data rate is higher, ensure that data validity needs to add utility appliance and effectively amplifies process to signal; 3, wired electromagnetic current metre very flexible, if desired changing measuring position then needs rewiring; 4, poor anti jamming capability, if electromagnetic current metre transmission cable is other the work of motor contour electromagnetic interference (EMI) equipment, can increase the probability of makeing mistakes of data; 5, cost is high, and transmission cable price comparison is expensive, increases repeating signal treatment facility if need when transmission range is far away, and this equipment price is general costly.
Utility model content
The purpose of this utility model is to provide a kind of wireless electromagnetic current meter, wirelessly transmits data, eliminates in earlier stage loaded down with trivial details wiring process, provides cost savings, and have higher measuring accuracy.
The purpose of this utility model is achieved through the following technical solutions:
A kind of wireless electromagnetic current meter, comprising: electromagnetic current metre, signal processing module, micro controller module and wireless receiver module;
Wherein, the flow speed data output terminal of described electromagnetic current metre is connected with the data input pin of described signal processing module; The digital signal output end of described signal processing module is connected with the data input pin of described micro controller module, and the process parameters input end of described signal processing module is connected with the process state modulator end of described micro controller module; The formatted data output terminal of described micro controller module is connected with the data input pin of described wireless receiver module, and the process parameter receiving end of described micro controller module is connected with described wireless receiver resume module parameter output.
Further, described electromagnetic current metre comprises: interconnective sensor and signal converter.
Further, also comprise: for the power module be connected with wireless receiver module with described electromagnetic current metre, signal processing module, micro controller module respectively.
The technical scheme provided as can be seen from above-mentioned the utility model, wirelessly transmits data, can play radiofrequency signal non-directional, do not affect by barrier and advantage that remote control distance is far away, again can transmitted in both directions, there is certain control action; Meanwhile, paired domination number certificate and the measurement data that can also grow distance are received and dispatched, and measuring accuracy is high, do not need wiring, simple to operation.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
The schematic diagram of a kind of wireless electromagnetic current meter that Fig. 1 provides for the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on embodiment of the present utility model, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to protection domain of the present utility model.
Embodiment
The utility model embodiment provides a kind of wireless electromagnetic current meter, and as shown in Figure 1, it mainly comprises: electromagnetic current metre, signal processing module, micro controller module and wireless receiver module;
Wherein, the flow speed data output terminal of described electromagnetic current metre is connected with the data input pin of described signal processing module; The digital signal output end of described signal processing module is connected with the data input pin of described micro controller module, and the process state modulator end of described signal processing module is connected with the process parameter output of described micro controller module; The formatted data output terminal of described micro controller module is connected with the data input pin of described wireless receiver module, and the process parameter receiving end of described micro controller module is connected with described wireless receiver resume module parameter output.
The function of above-mentioned module is as follows:
Described electromagnetic current metre, for transferring flow rate of liquid data to voltage signal, and exports the data input pin of described signal processing module to by data output end.
Electromagnetic current metre utilizes electromagnetic principle measurement point flow velocity.This electromagnetic current metre is arranged in water, and produces an artificial magnetic field in water, and current flow through this magnetic field, are equivalent to electric conductor cutting magnetic line, will produce induction electromotive force in current both sides.The mean flow rate of current can be calculated after measuring this electromotive force.This electromagnetic current metre does not have movable member, does not affect by impurities in water, and the conductance of water can affect the accuracy that tests the speed.
Described electromagnetic current metre comprises: interconnective sensor and signal converter; Described sensor, for experiencing the flow signal of liquid; Described converter, amplifies for the flow signal exported by sensor, and is converted to standard voltage signal.
Described electromagnetic current metre, also for measuring two-dimentional flow speed data simultaneously, two-way flow speed data exports (measure flow velocity is maximum reaches 200cm/s) by different interface, and different according to flow direction and reference direction, output positive/negative voltage signal.
Described signal processing module, single power supply demand is adopted to meet whole system for the negative voltage signal in voltage signal being converted to positive voltage signal, and carry out amplification and filter shape process, then after being converted into digital signal, exported to the data input pin of described micro controller module by digital signal output end.
Described micro controller module, parameter for using the signal processing of signal processing module controls (is sent to the process state modulator end of signal processing module by correlation parameter by process parameter output, correlation parameter comprises: signal gain amplifier, data transition rate, range etc.), and the digital signal that signal processing module exports formatd according to communications protocol, then export the data input pin of described wireless receiver module to by formatted data output terminal.
Described wireless receiver module, for adopting wireless mode outwards to transmit the digital signal after format, and the supplemental characteristic used by the signal processing that outside sends exports to the process parameter receiving end of described micro controller module by process parameter output; Specifically, wireless receiver module in charge digital signal is to the bi-directional conversion of radio frequency signal, after it receives the digital signal after the format of micro controller module output, start internal circuit transfer signal to radio frequency signal and be sent to radio frequency signal receiver, wireless signal is transferred to RS232 signal and is sent to data processing centre (DPC) by radio frequency signal receiver; Meanwhile, the steering order that data processing centre (DPC) sends can also be received, and the supplemental characteristic that signal processing uses, be transferred to micro controller module again after digital signal is converted to the data received.
In addition, described wireless electromagnetic current meter, also comprises: for being respectively the power module of described electromagnetic current metre, signal processing module, micro controller module and wireless receiver module for power supply.This power module can adopt 220V industrial-frequency alternating current, and alternating current is converted to the different magnitudes of voltage of applicable modules demand by power module.
Flow speed data is outwards sent by radio frequency signal by the wireless electromagnetic current meter that the utility model embodiment provides, radio frequency signal is in the form of an electromagnetic wave at spatial, do not need the transmission medium relying on other, this feature of radio frequency signal, determine it comparatively Data Over Cable there is a lot of advantage.The utility model uses wireless mode to transmit flow speed data, and tool has the following advantages: 1, data transmission does not need transmission cable, eliminates loaded down with trivial details wiring process; 2, dirigibility is strong, does not need rewiring just can normal communication when measuring equipment change position; 3, long transmission distance, the transmission range of wireless signal can reach about 200 meters, can increase wireless relay point or increase signal amplifying apparatus, can be used for Long-range Data Transmission when needs long range propagation; 4, low cost, uses wireless mode signal transmission to eliminate expensive transmission cable.
Those skilled in the art can be well understood to, for convenience and simplicity of description, only be illustrated with the division of above-mentioned each functional module, in practical application, can distribute as required and by above-mentioned functions and be completed by different functional modules, inner structure by device is divided into different functional modules, to complete all or part of function described above.
The above; be only the utility model preferably embodiment; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (3)
1. a wireless electromagnetic current meter, is characterized in that, comprising: electromagnetic current metre, signal processing module, micro controller module and wireless receiver module;
Wherein, the flow speed data output terminal of described electromagnetic current metre is connected with the data input pin of described signal processing module; The digital signal output end of described signal processing module is connected with the data input pin of described micro controller module, and the process parameters input end of described signal processing module is connected with the process state modulator end of described micro controller module; The formatted data output terminal of described micro controller module is connected with the data input pin of described wireless receiver module, and the process parameter receiving end of described micro controller module is connected with described wireless receiver resume module parameter output.
2. wireless electromagnetic current meter according to claim 1, is characterized in that, described electromagnetic current metre comprises: interconnective sensor and signal converter.
3. wireless electromagnetic current meter according to claim 1, is characterized in that, also comprise: for the power module be connected with wireless receiver module with described electromagnetic current metre, signal processing module, micro controller module respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520863224.5U CN205120743U (en) | 2015-11-02 | 2015-11-02 | Fast appearance of radio magnetic current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520863224.5U CN205120743U (en) | 2015-11-02 | 2015-11-02 | Fast appearance of radio magnetic current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205120743U true CN205120743U (en) | 2016-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520863224.5U Expired - Fee Related CN205120743U (en) | 2015-11-02 | 2015-11-02 | Fast appearance of radio magnetic current |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205120743U (en) |
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2015
- 2015-11-02 CN CN201520863224.5U patent/CN205120743U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160330 Termination date: 20161102 |
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| CF01 | Termination of patent right due to non-payment of annual fee |