CN201549046U - Power line carrier transmission electric fire hazard alarm monitoring system - Google Patents
Power line carrier transmission electric fire hazard alarm monitoring system Download PDFInfo
- Publication number
- CN201549046U CN201549046U CN2009203150081U CN200920315008U CN201549046U CN 201549046 U CN201549046 U CN 201549046U CN 2009203150081 U CN2009203150081 U CN 2009203150081U CN 200920315008 U CN200920315008 U CN 200920315008U CN 201549046 U CN201549046 U CN 201549046U
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- power
- power line
- electric fire
- fire hazard
- distribution cabinet
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Abstract
The utility model discloses a power line carrier transmission electric fire hazard alarm monitoring system. a residual current electric fire hazard alarm monitor is mounted in every power distribution cabinet of a power supply system; an power carrier module is connected between the residual current electric fire hazard alarm monitor and a three-phase power line in every power distribution cabinet; a coupler connected with a region concentrator is disposed in every switchgear house; a control center comprises a PC which is connected with an information concentrator by a RS232 interface; the information concentrator is connected with the RS485 interface of the region concentrator in every switchgear house by a RS485 bus. because a power carrier module is applied for transmitting the current leakage alarm signals generated by the residual current electric fire hazard alarm monitor to the three-phase power line, special purpose data transmission line is not needed, the system construction is simplified, and installation cost is reduced.
Description
Technical field
The utility model relates to appliance fire monitoring field, especially a kind of power line carrier transmission electric fire alarm supervisory system.
Background technology
Extensively employing lays data bus (two buses or three buses) transmission residual-current electrical fire monitoring detector alerting signal specially at present, and is great in constructing amount, and complexity is installed, and needs a large amount of track investment and erected cost.
The utility model content
The purpose of this utility model provides a kind of special data transmission link that need not to install, and can accurately show the power line carrier transmission electric fire alarm supervisory system of power distribution cabinet electric leakage information.
Power line carrier transmission electric fire alarm supervisory system of the present utility model is achieved by following technical proposals:
Power line carrier transmission electric fire alarm supervisory system of the present utility model, residual electricity streaming appliance fire alarm monitor is installed in each power distribution cabinet of electric power system, in described each power distribution cabinet, all has a power carrier module to be connected between residual-current electrical fire alarm monitor and the three-phase power line; Also comprise a coupling mechanism in each switchgear building, this coupling mechanism connects a regional centralized device; Control center comprises a PC, and this PC connects a message concentrator by the RS232 interface, and this message concentrator is connected to the RS485 interface of the regional centralized device of each switchgear building by the RS485 bus.
Its principle of work is: residual electricity streaming appliance fire alarm monitor is by the electric leakage situation of electric power system in the residual current transformer monitoring power distribution cabinet, when residual current reaches setting value, export a trip signal, break the input isolating switch, and produce this power distribution cabinet leakage-current alarm digital signal, residual current electric fire alarm actuating signal, fault-signal, this signal of pre-alarm signal are input in the three-phase power line by the power carrier module, and transport packet is drawn together residual current electric fire alarm actuating signal, fault-signal, pre-alarm signal etc.Coupling mechanism in the switchgear building is coupled three-phase and the next signal of zero line, send into the regional centralized device by the power carrier module and carry out the data aggregation arrangement, pass to message concentrator through the RS485 bus again, the information that message concentrator is sent each switchgear building regional centralized device here is compiled once more, send in control center's host computer through the RS232 interface, to realize the message exchange of control center and each power distribution cabinet.
As a kind of improvement of the present utility model, also comprise a video monitoring system, this video monitoring system comprises the camera that is installed in around the power distribution cabinet, video signal transmission device, the video signal receiver that is connected with the control center PC.
Power line carrier transmission electric fire alarm supervisory system of the present utility model compared with prior art has following good effect:
Because the leakage-current alarm signal that has used the power carrier module that the residual-current electrical fire alarm monitor is produced is input to the three-phase power line transmission, avoided special installation data transmission line, simplified system construction, reduced installation cost, simultaneously, be equipped with video monitoring system, make on the computer of control center, luminous energy is not seen the electric leakage state of each power distribution cabinet, can also see on-the-spot real-time pictures.
Description of drawings
The utility model will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is the utility model annexation synoptic diagram.
Embodiment
Disclosed arbitrary feature in this instructions (comprising any accessory claim, summary and accompanying drawing) is unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or the similar characteristics.
The power line carrier transmission electric fire alarm supervisory system of present embodiment, as shown in Figure 1, in each power distribution cabinet of electric power system, the residual-current electrical fire alarm monitor is installed, in described each power distribution cabinet, all has a power carrier module to be connected between residual electricity streaming appliance fire alarm monitor and the three-phase power line; Also comprise a coupling mechanism in each switchgear building, this coupling mechanism connects a regional centralized device; Control center comprises a PC, and this PC connects a message concentrator by the RS232 interface, and this message concentrator is connected to the RS485 interface of the regional centralized device of each switchgear building by the RS485 bus.
The three-phase and four-line power cable passes residual current transformer.When in the power distribution cabinet electric leakage being arranged, current phasor on four lines and non-vanishing, to detect this non-vanishing residual current on the residual current transformer, this electric current far amplifies and active rectifying circuit forms a DC voltage that changes with residual current through two-stage, and the single-chip microcomputer of delivering to leakage alarm is handled.Single-chip microcomputer at first carries out the A/D conversion to this DC voltage that has electric leakage information, becomes digital signal, and the back compares the leakage-current alarm value that is provided with, and demonstrates current leakage current size in real time with the LCD LCD simultaneously.When the leakage current that measures during greater than setting value, hummer and the LED light that starts leakage alarm carried out sound, light is reported to the police.This warning device is provided with a trip push button, presses the button, and can start back output drop away voltage at leakage-current alarm, and inlet wire sky in the cabinet is opened tripping, to cut off the input of power supply line, plays the protective effect to equipment.The leakage-current alarm value has designed 300mA, 400mA, 500mA third gear, by alarm introskip line options.
The regional centralized device is made up of power carrier module and single electric system and 485 buses.Residual current and the warning message each power distribution cabinet in should the zone on A, B, C three-phase power line and the N line sent here by the coupling mechanism on the line of electric force, collect in the Single Chip Microcomputer (SCM) system of regional centralized device, reconfigure and be arranged in a data chainning that communication protocols justice rule arranged, and deliver in the message concentrator by 485 buses.
Message concentrator is the same substantially with regional centralized device function, it collects the information data chain that comes from each regional centralized device, and be arranged in new data chainning again and give PC, so that the residual current alarm of master-control room PC in can remote each regional power cabinet of observing and controlling.Difference is that it and regional centralized device are to communicate with 485 bus forms, and the PC of master-control room communicates by the RS232 bus.
Also comprise a video monitoring system, this video monitoring system comprises the camera that is installed in around the power distribution cabinet, camera converts vision signal to digital signal by video frequency collection card and receives this signal by the CDMA transmitting-receiving connector that CDMA sends, is connected with the control center PC, and the PC display screen shows scene image information.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (2)
1. power line carrier is transmitted the electric fire alarm supervisory system, in each power distribution cabinet of electric power system the residual-current electrical fire alarm monitor is installed, it is characterized in that: in described each power distribution cabinet, all have a power carrier module to be connected between residual-current electrical fire alarm monitor and the three-phase power line; Also comprise a coupling mechanism in each switchgear building, this coupling mechanism connects a regional centralized device; Control center comprises a PC, and this PC connects a message concentrator by the RS232 interface, and this message concentrator is connected to the RS485 interface of the regional centralized device of each switchgear building by the RS485 bus.
2. power line carrier transmission electric fire alarm supervisory system according to claim 1, it is characterized in that: also comprise a video monitoring system, this video monitoring system comprises the camera that is installed in around the power distribution cabinet, video signal transmission device, the video signal receiver that is connected with the control center PC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203150081U CN201549046U (en) | 2009-11-18 | 2009-11-18 | Power line carrier transmission electric fire hazard alarm monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203150081U CN201549046U (en) | 2009-11-18 | 2009-11-18 | Power line carrier transmission electric fire hazard alarm monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201549046U true CN201549046U (en) | 2010-08-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203150081U Expired - Lifetime CN201549046U (en) | 2009-11-18 | 2009-11-18 | Power line carrier transmission electric fire hazard alarm monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201549046U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104836596A (en) * | 2015-04-15 | 2015-08-12 | 广东威灵电机制造有限公司 | Variable-speed motor networking system based on power carrier communication technology |
| CN105067872A (en) * | 2015-09-14 | 2015-11-18 | 国网浙江杭州市富阳区供电公司 | Single-phase residual electricity quantity signal trigger and monitoring method |
| CN105634556A (en) * | 2014-11-05 | 2016-06-01 | 武陟县电业总公司 | Method for communication among multiple transformer and distribution rooms based on power line carrier communication |
| US11367332B2 (en) | 2018-05-29 | 2022-06-21 | Autronica Fire & Security As | Hazard detector socket |
-
2009
- 2009-11-18 CN CN2009203150081U patent/CN201549046U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105634556A (en) * | 2014-11-05 | 2016-06-01 | 武陟县电业总公司 | Method for communication among multiple transformer and distribution rooms based on power line carrier communication |
| CN104836596A (en) * | 2015-04-15 | 2015-08-12 | 广东威灵电机制造有限公司 | Variable-speed motor networking system based on power carrier communication technology |
| CN105067872A (en) * | 2015-09-14 | 2015-11-18 | 国网浙江杭州市富阳区供电公司 | Single-phase residual electricity quantity signal trigger and monitoring method |
| US11367332B2 (en) | 2018-05-29 | 2022-06-21 | Autronica Fire & Security As | Hazard detector socket |
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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: 20100811 |
|
| CX01 | Expiry of patent term |