CN104360149B - A kind of power supply wall box acquisition module - Google Patents
A kind of power supply wall box acquisition module Download PDFInfo
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- CN104360149B CN104360149B CN201410750238.6A CN201410750238A CN104360149B CN 104360149 B CN104360149 B CN 104360149B CN 201410750238 A CN201410750238 A CN 201410750238A CN 104360149 B CN104360149 B CN 104360149B
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Abstract
A kind of power supply wall box acquisition module disclosed by the invention, it includes：Voltage conversion circuit, numeral input termination power, single-chip microcomputer process circuit, isolated form CAN bus circuit；The voltage signal of overvoltage on power supply wall box, electric leakage, ground wire, arrester conducting is collected by numeral input termination power first; after the voltage signal of collection is by light-coupled isolation; pass the signal to single-chip microcomputer process circuit; middle control main frame is transmitted a signal to by isolated form CAN bus circuit again, by middle control main frame observation and display power protection plate and the anomaly parameter of arrester；The present invention enables personnel timely to observe and grasps overvoltage, electric leakage, ground wire, arrester conducting state on power supply wall box by collecting the signal on power supply wall box and this signal being passed into middle control main frame to show observation.
Description
Technical field
The present invention relates to a kind of electronic module field, more particularly to a kind of power supply wall box acquisition module.
Background technology
At present, overvoltage, electric leakage, the alarm of ground wire of the circuit security board on power supply wall box can only be in the panels of power supply wall box
Upper viewing lamp realizes whether the conducting of arrester also just can only will appreciate that arrester by observing the display window of arrester
Failure, there is the arrester on the power supply wall box of shielding requirements to be mounted in inner box, be not easy to observe whether arrester fails.
After the appearance of power supply wall box is alarmed, it is overvoltage that operating personnel generally just can confirm that at race to power supply wall box, is leaked electricity, which that ground wire alerts
One kind, and arrester will periodically go the display window for observing arrester just to will appreciate that the conducting state of arrester, make operator
Member can not timely grasp status information.
The content of the invention
Technical problem solved by the invention is：Overcome the deficiencies in the prior art, and one kind is provided can collect power supply
The power supply wall box acquisition module for the voltage signal that overvoltage, electric leakage, ground wire, arrester turn on, is realized the voltage of collection on wall box
Signal is finally transferred to middle control main frame, and by middle control main frame observation and display power protection plate and the mesh of the anomaly parameter of arrester
's.
The required technical problem solved of the invention can be achieved through the following technical solutions：
A kind of power supply wall box acquisition module, including voltage conversion circuit, numeral input termination power, single-chip microcomputer processing electricity
Road, isolated form CAN bus circuit；The voltage conversion circuit is located at the upper right side of power supply wall box acquisition module；Single-chip microcomputer processing
Circuit is located at the left side of voltage conversion circuit；The numeral input termination power is located at the lower right of single-chip microcomputer process circuit；Every
Release CAN bus circuit is located at the lower left of single-chip microcomputer process circuit；Power supply is collected by numeral input termination power first
Overvoltage on wall box, electric leakage, ground wire, the voltage signal of arrester conducting, after the voltage signal of collection is isolated by photoelectric coupling, so
After pass the signal to single-chip microcomputer process circuit, then middle control main frame is transmitted a signal to by isolated form CAN bus circuit, in
Control main frame observation and display power protection plate and the anomaly parameter of arrester.
Further technical scheme is the present invention：Described voltage conversion circuit is due to the work on single-chip microcomputer process circuit
It is 5V as voltage, then needs power-switching circuit that 12V is converted into 5V operating voltage.12V voltage switches voltage stabilizing in the circuit
5V voltages are converted into after device.
Technical scheme of the invention further is：Described numeral input termination power is numeral input termination power
In, send single-chip microcomputer process circuit to after photoelectric coupling chip after the voltage signal that will be collected on power supply wall box.
Technical scheme of the invention further is：Described single-chip microcomputer process circuit be by the signal of single-chip microcomputer by every
Release CAN bus circuit transmits a signal to middle control main frame.
Further technical scheme is the present invention：Described isolated form CAN bus circuit is filter circuit, it be by every
With being connected to power supply 5VGND and electric capacity C1, C5, C6, C18 one end of the 1st, 3,7,9, the 10 of off-chip piece U1, electric capacity C1, C5 it is another
One end is connected to isolating chip U1 the 6th pin, and electric capacity C6, C18 other end are connected to isolating chip U1 the 8th pin, isolated core
Piece U1 the 6th, 8 pin be then connected to power vd D5V；Isolating chip U1 the 11st, 13,16,20 pin are connected to isolator
5VisoGND and electric capacity C2, C3, C7, C19 one end, electric capacity C2, C19 other end are connected to isolating chip U1 the 19th pin,
Electric capacity C3, C7 other end are connected to isolating chip U1 the 12nd pin, and isolating chip U1 the 12nd pin is connected with the 19th pin, the portion
Parallel circuit realizes power filter, is the power supply of circuit with stable low ripple.
The present invention has following features compared with prior art：
By collecting the signal on power supply wall box and this signal being passed into middle control main frame to show observation, enable personnel
It is enough timely to observe and grasp overvoltage, electric leakage, ground wire, arrester conducting state on power supply wall box.
Brief description of the drawings
Fig. 1 is that power supply wall box gathers expansion module functional diagram；
Fig. 2 is that 12V turns 5V circuit diagrams；
Fig. 3 is numeral input termination power figure；
Fig. 4 is signal transacting and transmitting circuit figure；
Fig. 5 is isolated form CAN bus circuit figure.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in drawings：A kind of power supply wall box acquisition module, including voltage conversion circuit, numeral input termination power, list
Piece machine process circuit, isolated form CAN bus circuit；Voltage conversion circuit is located at the upper right side of power supply wall box acquisition module, monolithic
Machine process circuit is located at the left side of voltage conversion circuit, numeral input termination power is located at the lower right of single-chip microcomputer process circuit,
Isolated form CAN bus circuit is located at the lower left of single-chip microcomputer process circuit；Electricity is collected by numeral input termination power first
Overvoltage on the wall box of source, electric leakage, ground wire, the voltage signal of arrester conducting, after the voltage signal of collection is isolated by photoelectric coupling,
Then single-chip microcomputer process circuit is passed the signal to, then middle control main frame is transmitted a signal to by isolated form CAN bus circuit, by
Middle control main frame observation and display power protection plate and the anomaly parameter of arrester, as shown in Figure 1.
Described voltage conversion circuit is due to that the operating voltage of single-chip microcomputer process circuit is 5V, then needs Power convert electric
12V is converted into 5V operating voltage by road.5V voltages are converted into after 12V voltage switches voltage-stablizer in the circuit, as shown in Figure 2.
Reference picture 3, described numeral input termination power are in numeral input termination power, will be collected on power supply wall box
Voltage signal after send single-chip microcomputer process circuit to after photoelectric coupling chip.
Described single-chip microcomputer process circuit（Referring to Fig. 4）It is that the signal of single-chip microcomputer is passed through into isolated form CAN bus circuit（Ginseng
See Fig. 5）Transmit a signal to middle control main frame.
Reference picture 5, described isolated form CAN bus circuit is filter circuit, it be by isolating chip U1 the 1st, 3,7,
9th, 10 5VGND and electric capacity C1, C5, C6, C18 one end, electric capacity C1, C5 other end are connected to isolating chip with being connected to power supply
U1 the 6th pin, electric capacity C6, C18 other end are connected to isolating chip U1 the 8th pin, isolating chip U1 the 6th, 8 pin reconnect
To power vd D5V；Isolating chip U1 the 11st, 13,16,20 pin be connected to isolator 5VisoGND and electric capacity C2, C3, C7, C19
One end, electric capacity C2, C19 other end is connected to isolating chip U1 the 19th pin, and electric capacity C3, C7 other end are connected to isolation
Chip U1 the 12nd pin, isolating chip U1 the 12nd pin are connected with the 19th pin, and the partial circuit realizes power filter, is carried for circuit
Power supply for stablizing low ripple.
The general principle, principal character and advantages of the present invention of invention has been shown and described above.The technology people of the industry
For member it should be appreciated that the present invention is not limited to the above embodiments, described in above-described embodiment and specification is to illustrate this hair
Bright principle, various changes and modifications of the present invention are possible without departing from the spirit and scope of the present invention, these changes
It all fall within the protetion scope of the claimed invention with improvement.The claimed scope of the invention is by appended claims and its waits
Jljl is defined.
Claims (6)
1. a kind of power supply wall box acquisition module, it is characterized in that：It includes voltage conversion circuit, numeral input termination power, monolithic
Machine process circuit, isolated form CAN bus circuit；Voltage conversion circuit is located at the upper right side of power supply wall box acquisition module, single-chip microcomputer
Process circuit is located at the left side of voltage conversion circuit, numeral input termination power is located at the lower right of single-chip microcomputer process circuit, every
Release CAN bus circuits are located at the lower left of single-chip microcomputer process circuit；Electricity is collected by numeral input termination power first
Overvoltage on the wall box of source, electric leakage, ground wire, the voltage signal of arrester conducting, after the voltage signal of collection is isolated by photoelectric coupling,
Then single-chip microcomputer process circuit is passed the signal to, then middle control main frame is transmitted a signal to by isolated form CAN bus circuit, by
Middle control main frame observation and display power protection plate and the anomaly parameter of arrester.
2. a kind of power supply wall box acquisition module according to claim 1, it is characterized in that：Described voltage conversion circuit is
Because the operating voltage of single-chip microcomputer process circuit is 5V, then need power-switching circuit that 12V is converted into 5V operating voltage.
3. a kind of power supply wall box acquisition module according to claim 2, it is characterized in that：12V voltages are through voltage in the circuit
5V voltages are converted into after switching regulator.
4. a kind of power supply wall box acquisition module according to claim 1, it is characterized in that：Described numeral input coupling electricity
Road is in numeral input termination power, and list is sent to after photoelectric coupling chip after the voltage signal that will be collected on power supply wall box
Piece machine process circuit.
5. a kind of power supply wall box acquisition module according to claim 1, it is characterized in that：Described single-chip microcomputer process circuit
It is that the signal of single-chip microcomputer is transmitted a signal into middle control main frame by isolated form CAN bus circuit.
6. a kind of power supply wall box acquisition module according to claim 1, it is characterized in that：Described isolated form CAN
Circuit is filter circuit, it be by isolating chip U1 the 1st, 3,7,9,10 with being connected to power supply 5VGND and electric capacity C1, C5, C6,
C18 one end, electric capacity C1, C5 other end are connected to isolating chip U1 the 6th pin, electric capacity C6, C18 other end be connected to every
Off-chip piece U1 the 8th pin, isolating chip U1 the 6th, 8 pin be then connected to power vd D5V；Isolating chip U1 the 11st, 13,16,
20 pin are connected to isolator 5VisoGND and electric capacity C2, C3, C7, C19 one end, and electric capacity C2, C19 other end are connected to isolation
Chip U1 the 19th pin, electric capacity C3, C7 other end are connected to isolating chip U1 the 12nd pin, isolating chip U1 the 12nd pin
It is connected with the 19th pin, the partial circuit realizes power filter, is the power supply of circuit with stable low ripple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410750238.6A CN104360149B (en) | 2014-12-10 | 2014-12-10 | A kind of power supply wall box acquisition module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410750238.6A CN104360149B (en) | 2014-12-10 | 2014-12-10 | A kind of power supply wall box acquisition module |
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| Publication Number | Publication Date |
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| CN104360149A CN104360149A (en) | 2015-02-18 |
| CN104360149B true CN104360149B (en) | 2017-12-01 |
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| CN201410750238.6A Active CN104360149B (en) | 2014-12-10 | 2014-12-10 | A kind of power supply wall box acquisition module |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| RU2661673C2 (en) * | 2016-10-11 | 2018-07-18 | Акционерное общество "Пензенское производственное объединение "Электроприбор" | Method of measurement of electric energy and device for its implementation |
Citations (3)
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| CN102208824A (en) * | 2011-06-03 | 2011-10-05 | 中国科学院电工研究所 | Sequential charging control system for electric vehicles |
| CN202041580U (en) * | 2011-05-16 | 2011-11-16 | 北京浩天融智电气科技有限公司 | Digital electricity meter device based on electrical link bus |
| CN204374290U (en) * | 2014-12-10 | 2015-06-03 | 衡阳泰豪通信车辆有限公司 | A kind of power supply wall box acquisition module |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100586383B1 (en) * | 2003-10-25 | 2006-06-08 | 한국전력공사 | Leakage current auto measurement apparatus |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202041580U (en) * | 2011-05-16 | 2011-11-16 | 北京浩天融智电气科技有限公司 | Digital electricity meter device based on electrical link bus |
| CN102208824A (en) * | 2011-06-03 | 2011-10-05 | 中国科学院电工研究所 | Sequential charging control system for electric vehicles |
| CN204374290U (en) * | 2014-12-10 | 2015-06-03 | 衡阳泰豪通信车辆有限公司 | A kind of power supply wall box acquisition module |
Non-Patent Citations (2)
| Title |
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| 便携式通用电源保安检测仪设计与使用;海效成;《电子制作》;20140605(第8期);第42页第1栏至第43页第3栏 * |
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| CN104360149A (en) | 2015-02-18 |
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