CN205229288U - Digit type current transmitter and detection equipment - Google Patents
Digit type current transmitter and detection equipment Download PDFInfo
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- CN205229288U CN205229288U CN201521000031.3U CN201521000031U CN205229288U CN 205229288 U CN205229288 U CN 205229288U CN 201521000031 U CN201521000031 U CN 201521000031U CN 205229288 U CN205229288 U CN 205229288U
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- signal
- digital
- type current
- current transducer
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Abstract
The application discloses digit type current transmitter and detection equipment, this digit type current transmitter include: the signal acquisition circuit that gather is carried out the current signal of the sensor output that awaits measuring, the electric current signal conversion who gathers signal acquisition circuit becomes direct current analog signal's signal conversion circuit, become direct current analog signal transition data signal's analog to digital conversion circuit, the data signal who obtains analog to digital conversion circuit sends to monitoring host's signal transmission circuit. The signal of transmission between current transmitter and the monitoring host is data signal in this application, because the good interference immunity of data signal to the interference that the signal received when having reduced current transmitter to monitoring host transmission signal, in addition, can transmit through a digital bus owing to multichannel data signal for many digital type current transmitter only need through a digital bus alright transmit to monitoring host, made things convenient for the wiring between current transmitter and the monitoring host.
Description
Technical field
The utility model relates to signal processing technology field, particularly a kind of numeric type current transducer and detecting devices.
Background technology
Traditional current transducer is a kind of device current signal being converted to linear DC simulating signal, because the anti-interference of simulating signal in transmitting procedure is poor, the simulating signal that current transducer is exported can introduce larger signal disturbing in the process transferring to monitoring host computer; And, what export due to existing current transducer is simulating signal, a current transducer is made to need by an independently transmission line analog signal, by the analog signal transmission of output to monitoring host computer, when system needs to utilize monitoring host computer to monitor the signal that multiple stage current transducer collects, will make to need in system to arrange many transmission line analog signals accordingly, thus make the wiring of entire system comparatively complicated, and add system cost.
Can find out in sum how to reduce current transducer to the interference suffered by signal during monitoring host computer signal transmission, and facilitate the wiring between current transducer and monitoring host computer to be have problem to be solved at present.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of numeric type current transducer and detecting devices, reduces current transducer to the interference suffered by signal during monitoring host computer signal transmission, and facilitates the wiring between current transducer and monitoring host computer.Its concrete scheme is as follows:
A kind of numeric type current transducer, comprising:
The signal acquisition circuit that the current signal exported sensor to be measured gathers;
The current signal that described signal acquisition circuit collects is converted to the signaling conversion circuit of DC simulation signal;
The DC simulation signal be converted to by described signaling conversion circuit converts the analog to digital conversion circuit of digital signal to;
The digital signal obtained by analog-digital conversion circuit as described is sent to the signal sending circuit of monitoring host computer.
Preferably, described signal sending circuit comprises:
Receive the signal receiving module of the digital signal that analog-digital conversion circuit as described exports;
The digital signal that described signal receiving module receives is sent to the signal transmitting module of described monitoring host computer.
Preferably, described signal sending circuit comprises:
Receive the signal receiving module of the digital signal that analog-digital conversion circuit as described exports;
The signal processing module that the digital signal received described signal receiving module processes;
The signal that described signal processing module exports is sent to the signal transmitting module of described monitoring host computer.
Preferably, described signal processing module comprises:
Carry out amplifying the digital signal amplifying unit processed to the digital signal that described signal receiving module receives.
Preferably, described signal processing module also comprises:
The signal of described digital signal amplifying unit output is carried out to the signal filtering unit of filtering process.
Preferably, described signal filtering unit is low-pass filter.
The invention also discloses a kind of detecting devices, comprise aforesaid numeric type current transducer; Wherein, described detecting devices comprises N number of described numeric type current transducer, and N is positive integer; Also comprise:
Be connected with communication bus, and by described communication bus, obtain the monitoring host computer of the signal that signal sending circuit sends in numeric type current transducer described in each.
Preferably, described communication bus is RS485 bus.
In the utility model, numeric type current transducer comprises: the signal acquisition circuit that the current signal exported sensor to be measured gathers; The current signal collected by signal acquisition circuit converts the signaling conversion circuit of DC simulation signal to; The DC simulation signal be converted to by signaling conversion circuit converts the analog to digital conversion circuit of digital signal to; The digital signal obtained by analog to digital conversion circuit is sent to the signal sending circuit of monitoring host computer.Visible, in the utility model, by arranging an analog to digital conversion circuit in numeric type current transducer, thus the DC simulation signal obtained by signaling conversion circuit converts digital signal to, then the digital signal obtained by analog to digital conversion circuit by signal sending circuit is sent to monitoring host computer, also be, the signal transmitted between current transducer and monitoring host computer in the utility model is digital signal, because digital signal has extraordinary anti-interference, thus reduce current transducer to the interference suffered by signal during monitoring host computer signal transmission; In addition, because multiply digital signals can be transmitted by a number bus, thus make multiple stage numeric type current transducer only need just can transfer to monitoring host computer by a number bus, thus the wiring facilitated between current transducer and monitoring host computer, for the complexity reducing wiring provides possibility.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiment of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
Fig. 1 is a kind of numeric type current transducer structural representation disclosed in the utility model embodiment;
Fig. 2 is a kind of concrete numeric type current transducer structural representation disclosed in the utility model embodiment;
Fig. 3 is a kind of detecting devices structural representation disclosed in 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 the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment discloses a kind of numeric type current transducer, shown in Figure 1, and above-mentioned numeric type current transducer comprises:
The signal acquisition circuit 11 that the current signal exported sensor to be measured gathers;
The current signal that signal acquisition circuit 11 collects is converted to the signaling conversion circuit 12 of DC simulation signal;
The DC simulation signal be converted to by signaling conversion circuit 12 converts the analog to digital conversion circuit 13 of digital signal to;
The digital signal that analog to digital conversion circuit 13 obtains is sent to the signal sending circuit 14 of monitoring host computer.
In the utility model embodiment, numeric type current transducer comprises: the signal acquisition circuit that the current signal exported sensor to be measured gathers; The current signal collected by signal acquisition circuit converts the signaling conversion circuit of DC simulation signal to; The DC simulation signal be converted to by signaling conversion circuit converts the analog to digital conversion circuit of digital signal to; The digital signal obtained by analog to digital conversion circuit is sent to the signal sending circuit of monitoring host computer.
Visible, in the utility model embodiment, by arranging an analog to digital conversion circuit in numeric type current transducer, thus the DC simulation signal obtained by signaling conversion circuit converts digital signal to, then the digital signal obtained by analog to digital conversion circuit by signal sending circuit is sent to monitoring host computer, also be, the signal transmitted between current transducer and monitoring host computer in the utility model embodiment is digital signal, because digital signal has extraordinary anti-interference, thus reduce current transducer to the interference suffered by signal during monitoring host computer signal transmission, in addition, because multiply digital signals can be transmitted by a number bus, thus make multiple stage numeric type current transducer only need just can transfer to monitoring host computer by a number bus, thus the wiring facilitated between current transducer and monitoring host computer, for the complexity reducing wiring provides possibility.
The utility model embodiment discloses a kind of concrete numeric type current transducer, and relative to a upper embodiment, the present embodiment has done further instruction and optimization to technical scheme.Concrete:
In the present embodiment, signal sending circuit 14 can have various structures.
Wherein, a kind of concrete structure of signal sending circuit is: signal sending circuit comprises the signal receiving module receiving the digital signal that analog to digital conversion circuit exports, and the digital signal received by signal receiving module is sent to the signal transmitting module of monitoring host computer.
Shown in Figure 2, the another kind of concrete structure of signal sending circuit 14 is: the signal processing module 142 that signal sending circuit 14 comprises the signal receiving module 141 receiving the digital signal that analog to digital conversion circuit 13 exports, the digital signal received signal receiving module 141 processes, and the signal that signal processing module 142 exports is sent to the signal transmitting module 143 of monitoring host computer.
In order to improve the intensity of signal, in the present embodiment, above-mentioned signal processing module specifically can comprise: carry out amplifying the digital signal amplifying unit processed to the digital signal that signal receiving module receives.
In order to improve the degree of purity of signal, in the present embodiment, above-mentioned signal processing module can further include: the signal exported digital signal amplification unit carries out the signal filtering unit of filtering process.Wherein, signal filtering unit is preferably low-pass filter, for removing high frequency noise.
The utility model embodiment also discloses a kind of detecting devices, comprises the current transducer of numeric type disclosed in previous embodiment; Wherein, shown in Figure 3, above-mentioned detecting devices comprises N number of numeric type current transducer, and N is positive integer; Also comprise:
Be connected with communication bus, and by above-mentioned communication bus, obtain the monitoring host computer 30 of the signal that signal sending circuit sends in each numeric type current transducer.
It should be noted that, in the present embodiment, preferred communication bus is RS485 bus.
The signal transmitted between current transducer and monitoring host computer in the utility model embodiment is digital signal, because digital signal has extraordinary anti-interference, thus reduces current transducer to the interference suffered by signal during monitoring host computer signal transmission; In addition, the N number of numeric type current transducer in the present embodiment only just need can carry out signal with monitoring host computer by a communication bus and be connected, thus facilitates the wiring between current transducer and monitoring host computer, reduces wiring complexity.
To the above-mentioned explanation of the disclosed embodiments, those skilled in the art are realized or uses the utility model.To be apparent for a person skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (8)
1. a numeric type current transducer, is characterized in that, comprising:
The signal acquisition circuit that the current signal exported sensor to be measured gathers;
The current signal that described signal acquisition circuit collects is converted to the signaling conversion circuit of DC simulation signal;
The DC simulation signal be converted to by described signaling conversion circuit converts the analog to digital conversion circuit of digital signal to;
The digital signal obtained by analog-digital conversion circuit as described is sent to the signal sending circuit of monitoring host computer.
2. numeric type current transducer according to claim 1, is characterized in that, described signal sending circuit comprises:
Receive the signal receiving module of the digital signal that analog-digital conversion circuit as described exports;
The digital signal that described signal receiving module receives is sent to the signal transmitting module of described monitoring host computer.
3. numeric type current transducer according to claim 1, is characterized in that, described signal sending circuit comprises:
Receive the signal receiving module of the digital signal that analog-digital conversion circuit as described exports;
The signal processing module that the digital signal received described signal receiving module processes;
The signal that described signal processing module exports is sent to the signal transmitting module of described monitoring host computer.
4. numeric type current transducer according to claim 3, is characterized in that, described signal processing module comprises:
Carry out amplifying the digital signal amplifying unit processed to the digital signal that described signal receiving module receives.
5. numeric type current transducer according to claim 4, is characterized in that, described signal processing module also comprises:
The signal of described digital signal amplifying unit output is carried out to the signal filtering unit of filtering process.
6. numeric type current transducer according to claim 5, is characterized in that, described signal filtering unit is low-pass filter.
7. a detecting devices, is characterized in that, comprises the numeric type current transducer as described in any one of claim 1 to 6; Wherein, described detecting devices comprises N number of described numeric type current transducer, and N is positive integer; Also comprise:
Be connected with communication bus, and by described communication bus, obtain the monitoring host computer of the signal that signal sending circuit sends in numeric type current transducer described in each.
8. detecting devices according to claim 7, is characterized in that, described communication bus is RS485 bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521000031.3U CN205229288U (en) | 2015-12-04 | 2015-12-04 | Digit type current transmitter and detection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521000031.3U CN205229288U (en) | 2015-12-04 | 2015-12-04 | Digit type current transmitter and detection equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205229288U true CN205229288U (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521000031.3U Expired - Fee Related CN205229288U (en) | 2015-12-04 | 2015-12-04 | Digit type current transmitter and detection equipment |
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| Country | Link |
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| CN (1) | CN205229288U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105445535A (en) * | 2015-12-04 | 2016-03-30 | 重庆鸿引电子有限公司 | Digital current transducer and detection device |
-
2015
- 2015-12-04 CN CN201521000031.3U patent/CN205229288U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105445535A (en) * | 2015-12-04 | 2016-03-30 | 重庆鸿引电子有限公司 | Digital current transducer and detection device |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20160511 Termination date: 20171204 |
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| CF01 | Termination of patent right due to non-payment of annual fee |