CN202013373U - Multipath current collector - Google Patents
Multipath current collector Download PDFInfo
- Publication number
- CN202013373U CN202013373U CN2010206509722U CN201020650972U CN202013373U CN 202013373 U CN202013373 U CN 202013373U CN 2010206509722 U CN2010206509722 U CN 2010206509722U CN 201020650972 U CN201020650972 U CN 201020650972U CN 202013373 U CN202013373 U CN 202013373U
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- mcu
- current
- indicating circuit
- current transformer
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Abstract
The present utility model discloses a multipath current collector. The collector successively comprises a current transformer set, a multipath simulation switch, a microprocessor MCU, an eight-digit dial switch, an RS 485 interface, an operating lamp indicating circuit and a communication lamp indicating circuit, wherein the current transformer set, the multipath simulation switch and the microprocessor MCU are mutually connected, and the eight-digit dial switch, the RS 485 interface, the operating lamp indicating circuit and the communication lamp indicating circuit are connected with the output end of the MCU. The current transformer set comprises 40 current transformers and can be connected with 40-path collected current signals simultaneously. The selection of sub computer address, communication baud rate and communication check bit is realized by the eight-digit dial switch. The MCU is connected with an upper computer through the RS 485 interface, and a read-write operation of the MCU is carried out by the upper computer. Through replacing 40 single-phase ammeters with the 40 current transformers of the current transformer set, layout space is saved, occupied communication resource is reduced, power distribution monitoring system cost is reduced, and the precision and efficiency of measurement are increased.
Description
Technical field
The utility model relates to a kind of collector, particularly relates to a kind of multichannel current acquisition device.
Background technology:
Existing distribution monitor, electric energy management, industrial automation, the building intelligent safety monitoring, sub-district power monitoring or the like all needs to carry out the monitoring of electricity consumption situation, and the diversity of distribution environment and cyclomatic complexity need be monitored the electricity consumption situation of each load, as voltage, electric current, frequency, parameter informations such as on off state, that produces in the domestic industry power monitoring industry is single-phase, the measurement instrument of two-phase or three-phase, be used to detect multiloop cost height, wiring is complicated, the phase mutual interference is big, can not satisfy the demand of enterprise and user's multiloop electric parameter measurement.
The utility model content:
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of multichannel current acquisition device is provided, and cost is low, save the space, to take communication resources few, and the energy Centralized Monitoring reduces the distributing monitoring system cost, and is easy for installation, instrument cost is low, can improve the precision and the speed of measurement.It is many to be fit to the electricity consumption load number, the applications that density is big.
In order to achieve the above object, the technical solution adopted in the utility model is: a kind of multichannel current acquisition device, form by interconnective current transformer group, multiway analog switch, microprocessor MCU (abbreviation of English Micro Control Unit) and 8 toggle switchs, RS485 interface, running indicator indicating circuit and the morse signal light indicating circuit that are connected the MCU output terminal successively.The current transformer group comprises 40 current transformers, can insert 40 tunnel current signals of gathering simultaneously.8 toggle switchs are realized the selection to handset address, communication baud rate and communication check bit.MCU is connected with host computer by the RS485 interface, and host computer carries out the reading and writing operation to MCU.
Compared with prior art, the beneficial effects of the utility model are: 40 current transformers of current transformer group replace 40 single-phase current tables, have saved arrangement space, and it is few to take communication resources, reduce the distributing monitoring system cost, improved the precision of measurement and the efficient of measurement.
Description of drawings:
Fig. 1 is a theory diagram of the present utility model;
Fig. 2 is a toggle switch structural drawing of the present utility model.
Embodiment:
Purport of the present utility model is to overcome the deficiencies in the prior art, a kind of multichannel current acquisition device is provided, and the Current Transformer group replaces a plurality of single-phase current tables to save arrangement space, and it is few to take communication resources, reduce the distributing monitoring system cost, improved the precision of measurement and the efficient of measurement.Be elaborated with reference to accompanying drawing below in conjunction with embodiment, so that technical characterictic of the present utility model and advantage are carried out more deep annotation.
Theory diagram of the present utility model as shown in Figure 1, a kind of multichannel current acquisition device is made up of interconnective current transformer group CT1～CT40, multiway analog switch, microprocessor MCU and 8 toggle switchs, RS485 interface, running indicator indicating circuit and the morse signal light indicating circuit that are connected the MCU output terminal successively.The current transformer group comprises 40 current transformers, can insert 40 tunnel current signals of gathering simultaneously.MCU is connected with host computer by the RS485 interface, and host computer carries out the reading and writing operation to MCU.8 toggle switch structural drawing as shown in Figure 2,1～5 pin carries out address setting, corresponding address can be set to 1～32,6,7 pin baud rate is provided with, 8 pin are that reset is established in communication check code position or " 1 " two kinds of patterns are represented no parity check or odd-even check.8 toggle switchs are realized communications parameters such as handset address, baud rate, check bit are carried out scene and remote operation.
Current signal I1～I40 is after current transformer group CT1～CT40 isolates, convert milliampere little current signal of level to, after sampling, enter multiway analog switch, multiway analog switch is under microprocessor MCU control, 40 sampled values are carried out the A/D conversion one by one, in Limited resources, raise the efficiency as far as possible, reduce cost.Simultaneously, MCU carries out communication by communication interface and host computer, and host computer carries out reading and writing operations to MCU, and multichannel current acquisition device is realized collection to 40 road electric currents by the data communication with host computer.
Claims (4)
1. a multichannel current acquisition device is characterized in that: be made up of interconnective current transformer group, multiway analog switch, microprocessor MCU successively.
2. multichannel current acquisition device according to claim 1 is characterized in that: the current transformer group of described multichannel current acquisition device comprises 40 current transformer CT1～CT40.
3. multichannel current acquisition device according to claim 2 is characterized in that: the microprocessor MCU output terminal of described multichannel current acquisition device is connected with 8 toggle switchs, RS485 interface, running indicator indicating circuit and morse signal light indicating circuit.
4. multichannel current acquisition device according to claim 3 is characterized in that: described microprocessor MCU is connected with host computer by the RS485 interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206509722U CN202013373U (en) | 2010-12-06 | 2010-12-06 | Multipath current collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206509722U CN202013373U (en) | 2010-12-06 | 2010-12-06 | Multipath current collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202013373U true CN202013373U (en) | 2011-10-19 |
Family
ID=44783990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206509722U Expired - Fee Related CN202013373U (en) | 2010-12-06 | 2010-12-06 | Multipath current collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202013373U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103730839A (en) * | 2012-10-11 | 2014-04-16 | 松下电器产业株式会社 | Electric power measuring device, distribution board, distribution board system and method for manufacturing same |
| CN108226685A (en) * | 2018-02-06 | 2018-06-29 | 中国科学院长春光学精密机械与物理研究所 | A kind of electricity monitoring system of photo-electric telescope |
-
2010
- 2010-12-06 CN CN2010206509722U patent/CN202013373U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103730839A (en) * | 2012-10-11 | 2014-04-16 | 松下电器产业株式会社 | Electric power measuring device, distribution board, distribution board system and method for manufacturing same |
| CN108226685A (en) * | 2018-02-06 | 2018-06-29 | 中国科学院长春光学精密机械与物理研究所 | A kind of electricity monitoring system of photo-electric telescope |
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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: 20111019 Termination date: 20191206 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |