CN204290272U - A kind of LED video curtain wall monitoring device - Google Patents
A kind of LED video curtain wall monitoring device Download PDFInfo
- Publication number
- CN204290272U CN204290272U CN201520005792.1U CN201520005792U CN204290272U CN 204290272 U CN204290272 U CN 204290272U CN 201520005792 U CN201520005792 U CN 201520005792U CN 204290272 U CN204290272 U CN 204290272U
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- CN
- China
- Prior art keywords
- curtain wall
- led video
- sensor group
- video curtain
- master controller
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Abstract
The utility model relates to a kind of LED video curtain wall monitoring device.Comprise MCU master controller, AD acquisition module, relay group, current sensor group, voltage sensor group, current sensor group, voltage sensor group detect the effective value of electric current in LED video curtain wall phase line and voltage respectively, AD acquisition module carries out multi-point sampling to the electric current of zero line on LED video curtain wall, and the signal output part of current sensor group, voltage sensor group and AD acquisition module is connected with the signal input part of MCU master controller, the signal input part of MCU master controller is connected with LED video curtain wall by relay group.The utility model can be monitored electric current and voltage effective value in LED video curtain wall phase line, also monitors harmonic current effective value on zero line.When the electric current on the effective value or phase line of harmonic current on zero line and voltage reach threshold value, then by the dump of LED video curtain wall, reach the effect of protection LED video curtain wall.
Description
Technical field
The utility model relates to a kind of LED protective device, particularly relates to a kind of LED video curtain wall monitoring device based on neutral line current effective value.
Background technology
LED video curtain wall is arranged on skin usually, and long-term work is in the adverse circumstances of sunlight exposure and raindrop erosion, and the fire alarm accident caused because fluorescent tube crack and water leakage causes short circuit problem often has generation.Traditional LED only monitors phase line current usually depending on act protector, when phase line current reaches threshold value, takes protection act.Because LED is depending on employing the non-linear equipments such as a large amount of rectifier power sources in act system, even if ensure electrical network three-phase equilibrium in design and installation process, also in zero line, there is a large amount of harmonic waves, harmonic current causes zero line to generate heat, and zero line is generally thin than phase line in traditional distribution layout, there is larger electric disaster hidden-trouble, therefore Real-Time Monitoring LED looks an act neutral line current effective value, has important practice significance to its safe operation of guarantee.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the utility model provides a kind of LED video curtain wall monitoring device.The utility model not only can monitor the effective value of voltage and electric current in LED video curtain wall phase line; and the harmonic current effective value can monitored when video curtain wall runs on zero line; when detecting that the harmonic current effective value on LED video curtain wall zero line reaches the harmonic current effective value threshold value of setting; cut off the power supply of LED video curtain wall, reach the effect of protection LED video curtain wall.
the technical solution adopted in the utility model is: LED video curtain wall monitoring device of the present utility model, include MCU master controller, AD acquisition module, relay group, current sensor group, voltage sensor group, wherein current sensor group, voltage sensor group detects the effective value of electric current in LED video curtain wall phase line and voltage respectively, AD acquisition module carries out multi-point sampling to the electric current of zero line on LED video curtain wall in a power frequency period, and current sensor group, the signal output part of voltage sensor group and AD acquisition module is connected with the signal input part of MCU master controller, the signal input part of MCU master controller is connected with LED video curtain wall by relay group.
Above-mentioned MCU master controller is also connected with gsm module.Above-mentioned MCU master controller is also connected with LCD display.
Compared with prior art; the beneficial effects of the utility model are: LED video curtain wall monitoring device of the present utility model not only can monitor the effective value of voltage and electric current in LED video curtain wall phase line; and the harmonic current effective value can monitored when video curtain wall runs on zero line; when detecting that the harmonic current effective value on LED video curtain wall zero line reaches the harmonic current effective value threshold value of setting; to the power supply of LED video curtain wall be cut off by relay, reach the effect of protection LED video curtain wall.And LED video curtain wall monitoring device of the present utility model can send SMS warning message to user by gsm module; User also can obtain LED video curtain wall operational factor by sending SMS to LED video curtain wall monitoring device of the present utility model; in data exception situation; user can send order by SMS; Long-distance Control relay cuts off the power supply of LED video curtain wall; information interaction and Long-distance Control can be reached by SMS communication, play the effect of protection LED video curtain wall further.The service data detected is shown by lcd screen by LED video curtain wall monitoring device of the present utility model simultaneously, checks for user scene.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model LED video curtain wall monitoring device.
embodiment:
Below in conjunction with accompanying drawing, the utility model is further illustrated:
The schematic diagram of the utility model LED video curtain wall monitoring device as shown in Figure 1, include MCU master controller, AD acquisition module, relay group, current sensor group, voltage sensor group, wherein current sensor group, voltage sensor group detects the effective value of electric current in LED video curtain wall phase line and voltage respectively, AD acquisition module carries out multi-point sampling to the electric current of zero line on LED video curtain wall in a power frequency period, and current sensor group, the signal output part of voltage sensor group and AD acquisition module is connected with the signal input part of MCU master controller, the signal input part of MCU master controller is connected with LED video curtain wall by relay group.In the present embodiment, MCU master controller with ARM chip for main controller.
Mutual for what realize between MCU master controller and user, above-mentioned MCU master controller is also connected with gsm module, MCU master controller sends SMS to user by gsm module, when user finds that the LED video curtain wall operational factor that SMS feeds back is abnormal, can send order to MCU master controller by SMS, MCU master controller cuts off the power supply of LED video curtain wall by relay group.MCU master controller is undertaken by SMS mode and user alternately.
Can check the parameter such as the electric current that video curtain wall runs and voltage at the scene for ease of user, above-mentioned MCU master controller is also connected with LCD display.User can check the parameter such as the electric current that video curtain wall runs and voltage at the scene by lcd screen.
Utility model works process is as follows: set the current threshold in LED video curtain wall phase line at MCU master controller, the threshold value of harmonic current on voltage threshold and zero line, current sensor group, the effective value of the voltage and current in voltage sensor group Real-time Obtaining LED video curtain wall phase line, AD acquisition module carries out multi-point sampling to the electric current on zero line in a power frequency period, and be converted to the effective value of harmonic current on zero line, the effective value obtained and corresponding threshold value compare by MCU master controller, if each effective value reaches threshold value, MCU master controller makes corresponding relay work, corresponding power unit is cut off, reach the effect of protection LED video curtain wall, and while cut-out LED video curtain wall power supply, MCU master controller can send SMS to user by gsm module, informs user LED video wall curtain operation irregularity, if each effective value does not reach threshold value, then current sensor group, voltage sensor group, AD acquisition module proceed data acquisition, so work on.
In addition, user by sending SMS to MCU master controller, can obtain the running state parameter of LED screen curtain wall at any time, also can send order by SMS, closes LED screen curtain wall power supply.
Claims (3)
1. a LED video curtain wall monitoring device, it is characterized in that including MCU master controller, AD acquisition module, relay group, current sensor group, voltage sensor group, wherein current sensor group, voltage sensor group detects the effective value of electric current in LED video curtain wall phase line and voltage respectively, AD acquisition module carries out multi-point sampling to the electric current of zero line on LED video curtain wall in a power frequency period, and current sensor group, the signal output part of voltage sensor group and AD acquisition module is connected with the signal input part of MCU master controller, the signal input part of MCU master controller is connected with LED video curtain wall by relay group.
2. LED video curtain wall monitoring device according to claim 1, is characterized in that above-mentioned MCU master controller is also connected with gsm module.
3. LED video curtain wall monitoring device according to claim 1 and 2, is characterized in that above-mentioned MCU master controller is also connected with LCD display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520005792.1U CN204290272U (en) | 2015-01-06 | 2015-01-06 | A kind of LED video curtain wall monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520005792.1U CN204290272U (en) | 2015-01-06 | 2015-01-06 | A kind of LED video curtain wall monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204290272U true CN204290272U (en) | 2015-04-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520005792.1U Expired - Fee Related CN204290272U (en) | 2015-01-06 | 2015-01-06 | A kind of LED video curtain wall monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204290272U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798935A (en) * | 2019-01-29 | 2019-05-24 | 上海无线通信研究中心 | A kind of Multiple Source Sensor synergic monitoring method for early warning and system for curtain wall |
| CN111504373A (en) * | 2020-04-24 | 2020-08-07 | 深圳市摩天氟碳科技有限公司 | Method for detecting safety of building outer wall and detector thereof |
-
2015
- 2015-01-06 CN CN201520005792.1U patent/CN204290272U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798935A (en) * | 2019-01-29 | 2019-05-24 | 上海无线通信研究中心 | A kind of Multiple Source Sensor synergic monitoring method for early warning and system for curtain wall |
| CN111504373A (en) * | 2020-04-24 | 2020-08-07 | 深圳市摩天氟碳科技有限公司 | Method for detecting safety of building outer wall and detector thereof |
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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: 20150422 Termination date: 20160106 |