CN204721092U - A kind of low-voltage distribution wire line failure alarm apparatus - Google Patents
A kind of low-voltage distribution wire line failure alarm apparatus Download PDFInfo
- Publication number
- CN204721092U CN204721092U CN201520448884.7U CN201520448884U CN204721092U CN 204721092 U CN204721092 U CN 204721092U CN 201520448884 U CN201520448884 U CN 201520448884U CN 204721092 U CN204721092 U CN 204721092U
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- China
- Prior art keywords
- carrier signal
- low
- voltage distribution
- line failure
- failure alarm
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- Expired - Fee Related
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- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model discloses a kind of low-voltage distribution wire line failure alarm apparatus, it comprises local alarm unit, and local alarm unit is connected with central control unit wire, and central control unit is connected with carrier signal generator and carrier signal receiver wire; The anti-means of thing and some modes simply by measuring voltage of solving prior art employing carry out circuit on-off detection, can not detect in real time circuit reliably, and need the problems such as the on-the-spot monitoring serious waste manpower and materials on duty of staff.
Description
Technical field
The utility model belongs to supply line's detection technique, particularly relates to a kind of low-voltage distribution wire line failure alarm apparatus.
Background technology
In electric power security protection industry, because low-voltage network electric power facility is widely distributed, difficult management, add its major part and adopt outdoor overhead cabling, especially in developed area, its supply line is all thicker, the object that supply line is become lawless person pays close attention to, often stolen, cause larger economic loss, and the anti-means of the thing adopted at present and some modes simply by measuring voltage carry out circuit on-off detection, can not detect in real time circuit reliably, therefore low-voltage network is badly in need of a kind of reliable technical precaution monitoring tool efficiently, thus avoid economic loss and affect circuit normal power supply, and the checkout gear of prior art all needs the on-the-spot monitoring on duty of staff, serious waste manpower and materials.
Utility model content
The technical problems to be solved in the utility model: a kind of low-voltage distribution wire line failure alarm apparatus is provided, the anti-means of thing adopted to solve prior art carry out circuit on-off detection with some modes simply by measuring voltage, can not detect in real time circuit reliably, and need the problems such as the on-the-spot monitoring serious waste manpower and materials on duty of staff.
Technical solutions of the utility model:
A kind of low-voltage distribution wire line failure alarm apparatus, it comprises local alarm unit, local alarm unit is connected with central control unit wire, and central control unit is connected with carrier signal generator and carrier signal receiver wire, and power subsystem provides power supply for whole device.
Described carrier signal generator is low frequency carrier signal generator, and described carrier signal receiver is low frequency carrier signal receiver.
Central control unit is connected with communications interface unit wire, and communications interface unit is electrically connected with long-distance monitoring and alarming terminal.
Described communications interface unit is wireless communication module.
Described carrier signal generator is connected with supply line with carrier signal receiver.
The beneficial effects of the utility model:
The connectivity of the utility model low-voltage distribution wire line failure alarm apparatus energy real-time perception circuit, thus whether Monitoring Line there is open failure, there is low cost of manufacture, applicability is high, reliability is high, the advantages such as rate of false alarm is low, the protection and monitor field of all low-voltage distributing lines (no matter whether running) can be widely used in, the anti-means of thing and some modes simply by measuring voltage of solving prior art employing carry out circuit on-off detection, can not detect in real time circuit reliably, and need the problems such as the on-the-spot monitoring serious waste manpower and materials on duty of staff.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Embodiment
A kind of low-voltage distribution wire line failure alarm apparatus (see figure 1), it comprises local alarm unit, and local alarm unit is connected with central control unit wire, and central control unit is connected with carrier signal generator and carrier signal receiver wire.
Central control unit is connected with communications interface unit wire, and communications interface unit and long-distance monitoring and alarming terminal are by wireless or wired connection.
Described communications interface unit is wireless communication module, and adopt wireless communication module, the monitor message collected by central control unit is sent to Central Control Room in real time, avoids manual site on duty, saves manpower and materials.
Described carrier signal generator is connected with supply line with carrier signal receiver, central control unit controls carrier signal generator to injected carrier signal in low-voltage network circuit, and received from the carrier signal on low-voltage network circuit by carrier signal receiver, by controller by whether detection low-voltage distributing line having correct carrier information thus determining whether circuit open failure occurs, determine whether low-voltage distributing line there occurs stolen situation further.
Described carrier signal generator is low frequency carrier signal generator; described carrier signal receiver is low frequency carrier signal receiver; referring in the frequency of below 150Hz is herein low frequency carrier signal; adopt low frequency FSK carrier channel and CRC cryptographic algorithm; in power network line, transmission has long transmission distance; the feature that antijamming capability is strong, no matter can well transmit in the situation of distribution line with or without power supply, therefore have a wide range of applications in low-voltage network route protection field value.
Functional characteristics of the present utility model is as follows:
(1), adopt in low frequency FSK power carrier mode, communication speed is fast, and reliability is high, and rate of false alarm is low.
(2), the two-way carrier wave validation testing of Bian, reliability is high, easy to use, without the need to point major and minor (master and slave) module.
(3), carrier data adopts CRC redundancy check, increase antijamming capability.
(4), adopt wireless or wire communication module, easily monitor message is uploaded to Central Control Room and cost is low, solve manual site's problem on duty.
(5), adopt power frequency FSK modulation mode, improve the penetrability of signal.
The range of application of the utility model device is as follows:
(1), the monitoring of power distribution network low-voltage overhead line road or buried circuit.
(2), do not supply power to construction cable or do not have be energized cable in stock security protection
(3), the protection of the interim low-voltage cable in field.
Claims (5)
1. a low-voltage distribution wire line failure alarm apparatus, it comprises local alarm unit, it is characterized in that: local alarm unit is connected with central control unit wire, and central control unit is connected with carrier signal generator and carrier signal receiver wire.
2. a kind of low-voltage distribution wire line failure alarm apparatus according to claim 1, it is characterized in that: described carrier signal generator is low frequency carrier signal generator, described carrier signal receiver is low frequency carrier signal receiver.
3. a kind of low-voltage distribution wire line failure alarm apparatus according to claim 1, it is characterized in that: central control unit is connected with communications interface unit wire, communications interface unit is electrically connected with long-distance monitoring and alarming terminal.
4. a kind of low-voltage distribution wire line failure alarm apparatus according to claim 3, is characterized in that: described communications interface unit is wireless communication module.
5. a kind of low-voltage distribution wire line failure alarm apparatus according to claim 1, is characterized in that: described carrier signal generator is connected with supply line with carrier signal receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520448884.7U CN204721092U (en) | 2015-06-29 | 2015-06-29 | A kind of low-voltage distribution wire line failure alarm apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520448884.7U CN204721092U (en) | 2015-06-29 | 2015-06-29 | A kind of low-voltage distribution wire line failure alarm apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204721092U true CN204721092U (en) | 2015-10-21 |
Family
ID=54320052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520448884.7U Expired - Fee Related CN204721092U (en) | 2015-06-29 | 2015-06-29 | A kind of low-voltage distribution wire line failure alarm apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204721092U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106124921A (en) * | 2016-07-27 | 2016-11-16 | 江门市地尔汉宇电器股份有限公司 | A kind of charging pile connects confirmation circuit and connects confirmation method |
| CN107064716A (en) * | 2017-05-05 | 2017-08-18 | 广东正力通用电气有限公司 | A kind of power transmission line break monitoring system and method |
| CN109444600A (en) * | 2018-12-11 | 2019-03-08 | 国网河南省电力公司南阳供电公司 | Track instrument is sought in a kind of high frequency carrier injection type low-voltage circuit path |
-
2015
- 2015-06-29 CN CN201520448884.7U patent/CN204721092U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106124921A (en) * | 2016-07-27 | 2016-11-16 | 江门市地尔汉宇电器股份有限公司 | A kind of charging pile connects confirmation circuit and connects confirmation method |
| CN107064716A (en) * | 2017-05-05 | 2017-08-18 | 广东正力通用电气有限公司 | A kind of power transmission line break monitoring system and method |
| CN109444600A (en) * | 2018-12-11 | 2019-03-08 | 国网河南省电力公司南阳供电公司 | Track instrument is sought in a kind of high frequency carrier injection type low-voltage circuit path |
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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: 20151021 Termination date: 20160629 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |