CN203858319U - Equipment leakage protection monitoring alarm system based on TD-LTE network - Google Patents
Equipment leakage protection monitoring alarm system based on TD-LTE network Download PDFInfo
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- CN203858319U CN203858319U CN201420296547.6U CN201420296547U CN203858319U CN 203858319 U CN203858319 U CN 203858319U CN 201420296547 U CN201420296547 U CN 201420296547U CN 203858319 U CN203858319 U CN 203858319U
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Abstract
The utility model discloses an equipment leakage protection monitoring alarm system based on a TD-LTE network. The equipment leakage protection monitoring alarm system comprises a voltage comparison module, a signal amplification circuit, a power management circuit, a zero sequence current transformer and a TD-LTE communication module; a power supply is connected with a power supply terminal of the voltage comparison module through the power management circuit; an output terminal of the voltage comparison module is connected with the TD-LTE communication module; the zero sequence current transformer is disposed on an equipment housing; an output terminal of the zero sequence current transformer is connected with an input terminal of the signal amplification circuit; an output terminal of the signal amplification circuit is connected with an input terminal of the voltage comparison module; and the TD-LTE communication module is connected with a remote receiving terminal through the communication network. The equipment leakage protection monitoring alarm system can be used for detecting current on the equipment surface and transmitting alarm signals through the TD-LTE network, remote monitoring on the equipment leakage current is achieved, the power management circuit is disposed to improve ripple coefficients of power signals, power supply quality is improved, and stable and normal operation of the system is ensured.
Description
Technical field
The utility model relates to a kind of equipment leakage protection monitoring and alarming system based on TD-LTE network.
Background technology
LTE-TDD, the domestic TD-LTE that also claims, be Time Division Long Term Evolution(time-division Long Term Evolution), each large enterprises of the whole world and the operator by 3GPP tissue, contained formulate jointly, two patterns of FDD in LTE standard and TDD are in fact identical, between two patterns, only have less difference, similarity reaches 90%.TDD is time division duplex (Time Division Duplexing), is one of duplex technology of mobile communication technology use, corresponding with FDD Frequency Division Duplexing (FDD).In fact it doesn't matter for TD-LTE and TD-SCDMA, and TD-LTE is the technology of the LTE of TDD version, and the technology of FDD-LTE is the LTE technology of FDD version.TD-SCDMA is CDMA(CDMA) technology, TD-LTE is OFDM(OFDM) technology.Both from encoding and decoding, frame format, eat dishes without rice or wine, signaling, to the network architecture, all different.
Along with the paces of TD-LTE scientific research, application are accelerated, the domestic much equipment for TD-LTE also starts to upgrade, yet, for most of equipment, also exist signal accuracy low, poor transmission, is used the problems such as simulation process radiofrequency signal, not only can not process fully and effectively radiofrequency signal, when interference source increases greatly, processing power can reduce greatly especially.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art; a kind of equipment leakage protection monitoring and alarming system based on TD-LTE network is provided; can detect the electric current of equipment surface; alerting signal is transmitted by TD-LTE network; the remote monitoring of realization to equipment leakage stream, and electric power management circuit is set, improve the ripple coefficient in power supply signal; improve power supply quality, guarantee that system stability moves normally.
The purpose of this utility model is achieved through the following technical solutions: a kind of equipment leakage protection monitoring and alarming system based on TD-LTE network, it comprises voltage comparison module, signal amplification circuit, electric power management circuit, zero sequence current mutual inductor, TD-LTE communication module, described power supply is connected with the feeder ear of voltage comparison module by electric power management circuit, the output terminal of voltage comparison module is connected with TD-LTE communication module, described zero sequence current mutual inductor is placed on device housings, its output terminal is connected with the input end of signal amplification circuit, the output terminal of signal amplification circuit is connected with the input end of voltage comparison module, TD-LTE communication module is connected with long-range receiving end by communication network.
Described electric power management circuit comprises transformer secondary output winding T, the diode rectifier bridge being comprised of diode D1 to D4 and capacitor C 1, two output terminals of transformer secondary output winding T are connected with two input ends of diode rectifier bridge respectively, two output terminals of diode rectifier bridge are connected with power output end respectively, and capacitor C 1 is connected in parallel between two output terminals of diode rectifier bridge.
Described electric power management circuit also comprises filter capacitor C2 and filter capacitor C3, filter capacitor C2 one end is connected with the forward output terminal that diode arranges bridge, other end ground connection, filter capacitor C3 one end is connected with the negative sense output terminal that diode arranges bridge, other end ground connection.
Described voltage comparison module comprises voltage comparator, the in-phase input end of voltage comparator is connected with the output terminal of signal amplification circuit, inverting input is connected with the input end of electric power management circuit, and the output terminal of voltage comparator is connected with the input end of TD-LTE communication module.
The beneficial effects of the utility model are:
(1) adopt pure hardware design, with low cost, simple in structure, reliable in function, detects the electric current of equipment surface, and alerting signal is transmitted by TD-LTE network, realize the remote monitoring to equipment leakage stream, facilitated the management work to remote equipment.
(2) be provided with electric power management circuit, improved the ripple coefficient in power supply signal, improved power supply quality, guaranteed that system stability moves normally.
Accompanying drawing explanation
Fig. 1 is the utility model structured flowchart;
Fig. 2 is the utility model electric power management circuit circuit diagram.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail, but protection domain of the present utility model is not limited to the following stated.
As shown in Figure 1, a kind of equipment leakage protection monitoring and alarming system based on TD-LTE network, it comprises voltage comparison module, signal amplification circuit, electric power management circuit, zero sequence current mutual inductor, TD-LTE communication module, described power supply is connected with the feeder ear of voltage comparison module by electric power management circuit, the output terminal of voltage comparison module is connected with TD-LTE communication module, described zero sequence current mutual inductor is placed on device housings, its output terminal is connected with the input end of signal amplification circuit, the output terminal of signal amplification circuit is connected with the input end of voltage comparison module, TD-LTE communication module is connected with long-range receiving end by communication network.
As shown in Figure 2, described electric power management circuit comprises transformer secondary output winding T, the diode rectifier bridge being comprised of diode D1 to D4 and capacitor C 1, two output terminals of transformer secondary output winding T are connected with two input ends of diode rectifier bridge respectively, two output terminals of diode rectifier bridge are connected with power output end respectively, and capacitor C 1 is connected in parallel between two output terminals of diode rectifier bridge.
Described electric power management circuit also comprises filter capacitor C2 and filter capacitor C3, filter capacitor C2 one end is connected with the forward output terminal that diode arranges bridge, other end ground connection, filter capacitor C3 one end is connected with the negative sense output terminal that diode arranges bridge, other end ground connection.
Described voltage comparison module comprises voltage comparator, the in-phase input end of voltage comparator is connected with the output terminal of signal amplification circuit, inverting input is connected with the input end of electric power management circuit, and the output terminal of voltage comparator is connected with the input end of TD-LTE communication module.
The above is only preferred implementation of the present utility model, be to be understood that the utility model is not limited to disclosed form herein, should not regard the eliminating to other embodiment as, and can be used for various other combinations, modification and environment, and can, in contemplated scope described herein, by technology or the knowledge of above-mentioned instruction or association area, change.And the change that those skilled in the art carry out and variation do not depart from spirit and scope of the present utility model, all should be in the protection domain of the utility model claims.
Claims (4)
1. the equipment leakage based on TD-LTE network is protected monitoring and alarming system, it is characterized in that: it comprises voltage comparison module, signal amplification circuit, electric power management circuit, zero sequence current mutual inductor, TD-LTE communication module, described power supply is connected with the feeder ear of voltage comparison module by electric power management circuit, the output terminal of voltage comparison module is connected with TD-LTE communication module, described zero sequence current mutual inductor is placed on device housings, its output terminal is connected with the input end of signal amplification circuit, the output terminal of signal amplification circuit is connected with the input end of voltage comparison module, TD-LTE communication module is connected with long-range receiving end by communication network.
2. the equipment leakage based on TD-LTE network according to claim 1 is protected monitoring and alarming system; it is characterized in that: described electric power management circuit comprises transformer secondary output winding T, the diode rectifier bridge being comprised of diode D1 to D4 and capacitor C 1; two output terminals of transformer secondary output winding T are connected with two input ends of diode rectifier bridge respectively; two output terminals of diode rectifier bridge are connected with power output end respectively, and capacitor C 1 is connected in parallel between two output terminals of diode rectifier bridge.
3. the equipment leakage based on TD-LTE network according to claim 2 is protected monitoring and alarming system; it is characterized in that: described electric power management circuit also comprises filter capacitor C2 and filter capacitor C3; filter capacitor C2 one end is connected with the forward output terminal that diode arranges bridge; other end ground connection; filter capacitor C3 one end is connected with the negative sense output terminal that diode arranges bridge, other end ground connection.
4. the equipment leakage based on TD-LTE network according to claim 1 is protected monitoring and alarming system; it is characterized in that: described voltage comparison module comprises voltage comparator; the in-phase input end of voltage comparator is connected with the output terminal of signal amplification circuit; inverting input is connected with the input end of electric power management circuit, and the output terminal of voltage comparator is connected with the input end of TD-LTE communication module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420296547.6U CN203858319U (en) | 2014-06-06 | 2014-06-06 | Equipment leakage protection monitoring alarm system based on TD-LTE network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420296547.6U CN203858319U (en) | 2014-06-06 | 2014-06-06 | Equipment leakage protection monitoring alarm system based on TD-LTE network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203858319U true CN203858319U (en) | 2014-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420296547.6U Expired - Fee Related CN203858319U (en) | 2014-06-06 | 2014-06-06 | Equipment leakage protection monitoring alarm system based on TD-LTE network |
Country Status (1)
| Country | Link |
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| CN (1) | CN203858319U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104749484A (en) * | 2015-04-22 | 2015-07-01 | 国家电网公司 | Electric-leakage monitoring device |
-
2014
- 2014-06-06 CN CN201420296547.6U patent/CN203858319U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104749484A (en) * | 2015-04-22 | 2015-07-01 | 国家电网公司 | Electric-leakage monitoring device |
| CN104749484B (en) * | 2015-04-22 | 2017-06-06 | 国家电网公司 | Leakage monitoring device |
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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: 20141001 Termination date: 20170606 |
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| CF01 | Termination of patent right due to non-payment of annual fee |