CN201069453Y - Multi-channel power detection display device - Google Patents
Multi-channel power detection display device Download PDFInfo
- Publication number
- CN201069453Y CN201069453Y CNU2007200852971U CN200720085297U CN201069453Y CN 201069453 Y CN201069453 Y CN 201069453Y CN U2007200852971 U CNU2007200852971 U CN U2007200852971U CN 200720085297 U CN200720085297 U CN 200720085297U CN 201069453 Y CN201069453 Y CN 201069453Y
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- China
- Prior art keywords
- programmable controller
- display device
- load current
- line voltage
- channel power
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Abstract
The utility model discloses a multi-channel power detection/display device which comprises a displayer, a programmable controller (PLC), a load current sensing circuit and a power network voltage sensing circuit. The programmable controller comprises an analogue module S1 and a CPU module S2, and is connected with the displayer via a communication cable. The output ends of the load current sensing circuit and the power network voltage sensing circuit are respectively connected with the programmable controller. The utility model has the advantages that the device realizes the real-time and accurate display of the total power consumed by the DC power network; the power detection mode is safe and reliable; the standby input signal adapter is provided to meet the requirement for multi-load power detection; and the device is extensible to use a plurality of displayers which are placed in easy-to-view sites instead of load field, thereby facilitating the use.
Description
Technical field
The utility model relates to a kind of direct current power grid equipment, is specifically related to a kind of multi-channel power and detects display device.
Background technology
The utilization of direct current power electrical network is of long duration, the finite capacity of electrical network along with continuous the increasing of user of DC load, in order accurately to obtain the total load information of electrical network, thereby need detect the power consumption situation of each the load user in the direct current power electrical network and demonstration in real time, so that the generation power plant of subtend electric power network power supply is implemented effectively control, thereby generated output and consumed power are complementary.Past is only made current detecting to the load in the direct current network, and electrical network is only made voltage detecting, and the equipment that rarely has the total power consumption to whole supply network load to detect.In addition, the means that detect electric current generally adopt shunt, on detection mode, be direct contact type, be easy to generate fault, and the signal that detects like this can not long-distance transmissions, can only connect instrument nearby and show, if want the words of teletransmission, then need increase some corresponding measures such as buffer circuit and amplifying circuit, it is undesirable to detect display effect.Detect the electric currents of organizing load as needs more, then will increase polycomponent stream device accordingly, expansion is inconvenient.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of open multi-channel power to detect and display device at the deficiency of above-mentioned prior art existence.It can detect and show in real time the power consumption situation of each load in the direct current network; And detection mode is contactless, safe and reliable; Amplifying circuit that needn't additional redundancy just can produce the good detection display effect; Expansion is convenient, can satisfy the needs that the user detects many group bearing powers.
The utility model is that the technical scheme that technical matters adopted of the above-mentioned proposition of solution is: comprise display, programmable controller PLC, load current sensor circuit and line voltage sensor circuit, described programmable controller contains analog module S1 and links to each other with display by communication cable with CPU module S2 and programmable controller, and the output terminal of described load current sensor circuit and line voltage sensor circuit links to each other with programmable controller respectively.
Press such scheme, described load current sensor circuit comprises load current sensor X and current sensor power module D, and load current sensor X is a non-contacting sensor.
Press such scheme, described line voltage sensor circuit comprises line voltage sensor Y and voltage sensor power module D1, and line voltage sensor Y is a non-contacting sensor.
The course of work of the present utility model is: load current sensor circuit and line voltage sensor circuit record load current value and line voltage value respectively, and send programmable controller PLC to, current value and line voltage value to each load in PLC are carried out power calculation, and again each measured value and power calculation value being added up to be sent in the display after the statistics by actual needs shows in real time with digital form.
The beneficial effects of the utility model are: (1) can demonstrate the general power of direct current power electrical network load consumption in real time, exactly; (2) because used line voltage sensor Y and load current sensor X are contactless, so the detection mode of this power is safe and reliable; (3) the analog module S1 on the programmable controller PLC of Cai Yonging has the standby joint of a plurality of input signals, and convenient expansion can be satisfied many group bearing powers and detect needs; (4) the CPU module S2 on the programmable controller PLC of Cai Yonging has a plurality of display joints, and expanded scope can be placed on the convenient place of observing and unsupported scene is used more flexible.
Description of drawings
Fig. 1 is the structural representation of an embodiment of the utility model.
Fig. 2 is the structural representation of another embodiment of the utility model.
Fig. 3 is the electrical principle road of Fig. 1 embodiment.
Embodiment
Further specify embodiment of the present utility model below in conjunction with accompanying drawing.
Comprise display S3, programmable controller PLC, load current sensor circuit and line voltage sensor circuit; Described PLC contains analog module S1 and CPU module S2, the load current sensor circuit comprises load current sensor X and current sensor power module D, the line voltage sensor circuit comprises line voltage sensor Y and voltage sensor power module D1, and X and Y are non-contacting sensor; The CPU module S2 of PLC links to each other with display S3 by communication cable; Load current sensor X+,-two ends respectively with current sensor power module D+,-two ends link to each other, its output signal end E links to each other with A+, the A-of analog module S1, and the E end is connected to resistance R between holding with A-; Line voltage sensor Y+,-two ends respectively with voltage sensor power module D1+,-two ends link to each other, its output signal end F links to each other with D+, the D-of analog module S1, and the F end is connected to resistance R 1 between holding with D-; The Vin+ of D, D1, Vin-the end respectively with dc power supply V1+,-end link to each other; The L+ of S1, the L+ of S2, S3+end all with dc power supply V1+end links to each other, the M of the M of S1, A-, D-, S2, S3-, the GNB of GNB, the D1 of D holds all with dc power supply V1-hold to link to each other; Load is connected on the direct current network, and the input end T of contactless load current sensor X is enclosed within the load, input end U+, the U-of contactless line voltage sensor Y be connected on direct current network+,-two ends.
During this device work, load current sensor X and line voltage sensor Y record load current and line voltage respectively, current signal that records and voltage signal are sent into S1 from E, F end through A+, A-, D+, the D-of analog module S1 respectively, the signal of S1 after analog to digital conversion passed to the CPU module by communication cable, the CPU module is carried out power calculation to load current value and line voltage value that S1 sends here, and current value, magnitude of voltage and power calculation value be sent in the display show in real time with digital form.The B+ of S1, B-and C+, C-are the standby joint of input signal, can expand the load current sensor circuit, satisfy and detect the needs that show many group bearing powers.
Claims (7)
1. a multi-channel power detects display device, it is characterized in that comprising display, programmable controller PLC, load current sensor circuit and line voltage sensor circuit, described programmable controller contains analog module (S1) and links to each other with display by communication cable with CPU module (S2) and programmable controller, and the output terminal of described load current sensor circuit and line voltage sensor circuit links to each other with programmable controller respectively.
2. multi-channel power according to claim 1 detects display device, it is characterized in that described load current sensor circuit comprises load current sensor (X) and current sensor power module (D), described load current sensor (X) is a non-contacting sensor.
3. multi-channel power according to claim 1 and 2 detects display device, it is characterized in that described line voltage sensor circuit comprises line voltage sensor (Y) and voltage sensor power module (D1), described line voltage sensor (Y) is a non-contacting sensor.
4. multi-channel power according to claim 1 and 2 detects display device, it is characterized in that being connected to resistance (R) between the signal input part (A-) of the signal output part (E) of described load current sensor (X) and analog module (S1).
5. multi-channel power according to claim 1 and 2 detects display device, it is characterized in that being connected to resistance (R1) between the signal input part (D-) of the signal output part (F) of described line voltage sensor (Y) and analog module (S1).
6. multi-channel power according to claim 1 and 2 detects display device, it is characterized in that described programmable controller expansion has the multichannel loading current sensor circuit.
7. multi-channel power according to claim 1 and 2 detects display device, it is characterized in that described programmable controller is connected to a plurality of displays.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200852971U CN201069453Y (en) | 2007-06-19 | 2007-06-19 | Multi-channel power detection display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200852971U CN201069453Y (en) | 2007-06-19 | 2007-06-19 | Multi-channel power detection display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201069453Y true CN201069453Y (en) | 2008-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200852971U Expired - Lifetime CN201069453Y (en) | 2007-06-19 | 2007-06-19 | Multi-channel power detection display device |
Country Status (1)
| Country | Link |
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| CN (1) | CN201069453Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871966A (en) * | 2010-05-27 | 2010-10-27 | 东莞市锐源仪器有限公司 | Multi-channel dynamic testing method and dynamic testing circuit thereof |
| CN102360036A (en) * | 2011-08-10 | 2012-02-22 | 上海华艾软件有限公司 | Multi-channel current collecting and superposing device |
| CN103777069A (en) * | 2012-10-26 | 2014-05-07 | 神讯电脑(昆山)有限公司 | System for measuring power of multiple power supplies and method for operating same |
| CN105117324A (en) * | 2015-08-05 | 2015-12-02 | 浪潮电子信息产业股份有限公司 | Method for implementing measurement of real-time power consumption of multiple VRs of mainboard system |
-
2007
- 2007-06-19 CN CNU2007200852971U patent/CN201069453Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871966A (en) * | 2010-05-27 | 2010-10-27 | 东莞市锐源仪器有限公司 | Multi-channel dynamic testing method and dynamic testing circuit thereof |
| CN102360036A (en) * | 2011-08-10 | 2012-02-22 | 上海华艾软件有限公司 | Multi-channel current collecting and superposing device |
| CN103777069A (en) * | 2012-10-26 | 2014-05-07 | 神讯电脑(昆山)有限公司 | System for measuring power of multiple power supplies and method for operating same |
| CN103777069B (en) * | 2012-10-26 | 2016-08-10 | 神讯电脑(昆山)有限公司 | Multi-group power power measurement system and operational approach thereof |
| CN105117324A (en) * | 2015-08-05 | 2015-12-02 | 浪潮电子信息产业股份有限公司 | Method for implementing measurement of real-time power consumption of multiple VRs of mainboard system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080604 |
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| CX01 | Expiry of patent term |