CN202600030U - High-voltage live displaying and blocking device - Google Patents
High-voltage live displaying and blocking device Download PDFInfo
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- CN202600030U CN202600030U CN 201220153095 CN201220153095U CN202600030U CN 202600030 U CN202600030 U CN 202600030U CN 201220153095 CN201220153095 CN 201220153095 CN 201220153095 U CN201220153095 U CN 201220153095U CN 202600030 U CN202600030 U CN 202600030U
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- signal input
- blocking device
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Abstract
The utility model discloses a high-voltage live displaying and blocking device, comprising a single-chip microcomputer, a signal input circuit, a status display circuit, a voice broadcast circuit and a communication circuit, which are connected in specific relationship. The signal input circuit comprises an inductor, a lightning protector, a filter circuit, a signal amplifier, a logic circuit and an output circuit which are serially connected in order. The inductor, as a signal input terminal of the signal input circuit, is inductively connected with an external line. As a signal output terminal of the signal input circuit, the output circuit is connected with the single-chip microcomputer. A signal comparison circuit and a detection circuit are connected in parallel between the signal amplifier and the logic circuit. The logic circuit is connected with the lightning protector via a self-checking circuit as well. A discharging output terminal of the lightning protector is also connected with the ground via a protective capacitor. With high anti-interference ability, the high-voltage live displaying and blocking device of the utility model causes no effect on normal operation of other devices in a switching station, prevents misoperation by voice prompt, to users, of the current status of the current external line, and also provides to users multiple selections of communication module modes with a background monitoring terminal. In addition, the high-voltage live displaying and blocking device is simple in structure and reliable in operation and has good application prospects.
Description
Technical field
The utility model relates to a kind of high-voltage electriferous display locking device, belongs to high-tension apparatus resist technology field.
Background technology
High-voltage electriferous display locking device belongs to electric system and prevents the electric misoperation device; Compare with traditional electrical verification mode and to have lot of advantages; High-voltage electriferous display locking device adopts the novel electron sensing technology; Effectively utilize electric field signal,, realize exchanging the online live monitoring of electric line through utilization to a series of electric original papers such as single-chip microcomputers; Can charged easily installation; Needn't carry out any change to original line system, can be applied in neatly on all kinds of open type hv cable termination equipment or the GIS product, can be at line supervision, supply to have a power failure show, low-voltage is reported to the police, ground wire opens circuit and carry out aspect such as circuit automatic switchover through auxiliary circuit is with a wide range of applications.
The input signal of existing high-voltage electriferous display locking device receives the progressively aging influence that changes with the space natural conditions of cable to cause the monitoring error easily; And under the interference in the border of T-Ring outside of high-voltage electriferous display locking device, like thundery sky gas, the electric current of high-voltage electriferous display locking device meeting earial drainage; Influence the normal operation of other equipment in the switchyard; And not having voice broadcast function, the current state of cue circuit prevents misoperation of users.
The utility model content
The purpose of the utility model is for the input signal end anti-interference that overcomes existing electrification in high voltage blocking device is strong, the electric current earial drainage of thunderstorm weather electrification in high voltage blocking device; Influence the normal operation of other equipment in the switchyard; And do not have voice broadcast function, prevent the problem of user misoperation.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopted is:
A kind of electrification in high voltage blocking device; Comprise single-chip microcomputer; It is characterized in that: also comprise signal input circuit, status display circuit, voice broadcast circuit and communicating circuit; Said signal input circuit comprises inductor, lightning protection, filtering circuit, signal amplifier, logical circuit and the output circuit of series connection successively; Said inductor is connected with the outside line induction as the signal input part of signal input circuit, and said output circuit is connected with single-chip microcomputer as the signal output part of signal input circuit, also is provided with the signal comparator circuit and the detecting circuit of parallel connection between said signal amplifier and the logical circuit; Said logical circuit also is connected with lightning protection through self-checking circuit, and the discharge output terminal of said lightning protection also is connected with ground through protective condenser.
Aforesaid electrification in high voltage blocking device is characterized in that: also comprise AC or DC power supply and the watchdog circuit that is connected with single-chip microcomputer, said AC or DC power supply are connected with the power input of single-chip microcomputer and other circuit respectively through the power supply rearrangeable switch.
Aforesaid electrification in high voltage blocking device is characterized in that: said communicating circuit comprises RS485 communication module and gsm wireless communication module, and said RS485 communication module is connected with single-chip microcomputer through either-or switch with the gsm wireless communication module.
The beneficial effect of the utility model is: the signal input circuit that the electrification in high voltage blocking device of the utility model adopts has lightning protection function and signal comparator circuit and detecting circuit and can export stable signal and adopt wireless sensor to carry out wireless induction; Prevent the progressively aging influence that changes with the space natural conditions of cable; Strong interference immunity; And do not influence the operate as normal of other equipment in the switchyard at thunderstorm weather, and have the voice broadcast circuit, can point out the current state of the current outside line of user accurately; Prevent maloperation; And providing multiple communication module mode user to select with the background monitoring terminal, the utility model simplicity of design, reliable has a good application prospect.
Description of drawings
Fig. 1 is the system chart of the electrification in high voltage blocking device of the utility model.
Fig. 2 is the system chart of the signal input circuit of the utility model.
Embodiment
To combine Figure of description below, the utility model will be described further.Following examples only are used for more clearly explaining the technical scheme of the utility model, and can not limit the protection domain of the utility model with this.
Like Fig. 1 and shown in Figure 2; A kind of electrification in high voltage blocking device; Comprise that single-chip microcomputer (adopts the mps430 chip; Low in energy consumption, low price, anti-interference are higher), signal input circuit, status display circuit, voice broadcast circuit and communicating circuit, wherein status display circuit is the charged situation that is used to show outside line; The voice broadcast circuit adopts the ISD1420 voice recording and playback ic to cooperate other circuit to constitute; The ISD1420 voice recording and playback ic is low in energy consumption, reliability is high, price is suitable; Can the recording playback one, the user can be earlier voluntarily to after each on off state recording storage, in use can choose broadcast to each on off state recording of storage in advance according to the signal of the transmission of microprocessor module; Thereby the state of each switch on the current switch cubicle of prompting user prevents maloperation; Signal input circuit is used for the signal of collection modulation outside line, and sends signal to single-chip microcomputer, does further processing; The inductor, lightning protection, filtering circuit, signal amplifier, logical circuit and the output circuit that comprise series connection successively, inductor is connected with the outside line induction as the signal input part of signal input circuit, and output circuit is connected with single-chip microcomputer as the signal output part of signal input circuit; Also be provided with the signal comparator circuit and the detecting circuit of parallel connection between signal amplifier and the logical circuit, logical circuit also is connected with lightning protection through self-checking circuit, and the discharge output terminal of lightning protection also is connected with ground through protective condenser; Wherein inductor is in high-voltage electric field, if electrode is set, because the effect of electrostatic induction; Induced charge will appear; With this as input signal, and through filtering circuit, signal amplifier, logical circuit and output circuit, to the conditioning of input signal; Filtering interfering; Send stable input signal to single-chip microcomputer, and be provided with lightning protection, all leakage current sends the earth to through protective condenser; Thereby do not influence the operate as normal of miscellaneous equipment in the switchyard; The signal comparator circuit and the detecting circuit that also are provided with parallel connection between signal amplifier and the logical circuit can effectively be eliminated extraneous undesired signal, and having only normal input signal just can be logical circuit conducting work, and the unlatching output circuit sends input signal to single-chip microcomputer and does subsequent treatment.
The electrification in high voltage blocking device of the utility model also comprises AC or DC power supply and the watchdog circuit that is connected with single-chip microcomputer; Said AC or DC power supply are connected with single-chip microcomputer and other each circuit through the power supply rearrangeable switch; Each circuit of this electrification in high voltage blocking device can be selected AC and DC various power mode; Watchdog circuit is used to prevent the on off state display in use; The electrification in high voltage blocking device is restarted in unexpected collapse (such as electrostatic interference), guarantees the operate as normal of electrification in high voltage blocking device.
Said communicating circuit comprises RS485 communication module and gsm wireless communication module; Said RS485 communication module is connected with single-chip microcomputer through either-or switch with the gsm wireless communication module; Communicating circuit comprises RS485 communication module and two kinds of communication modes of gsm wireless communication module; The user can select the communication modes configuration through either-or switch according to the installation environment of switchyard, has increased the scope of application of electrification in high voltage blocking device.
More than show and described ultimate principle, principal character and the advantage of the utility model.The technician of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the instructions that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.
Claims (3)
1. electrification in high voltage blocking device; Comprise single-chip microcomputer; It is characterized in that: also comprise signal input circuit, status display circuit, voice broadcast circuit and communicating circuit; Said signal input circuit comprises inductor, lightning protection, filtering circuit, signal amplifier, logical circuit and the output circuit of series connection successively; Said inductor is connected with the outside line induction as the signal input part of signal input circuit, and said output circuit is connected with single-chip microcomputer as the signal output part of signal input circuit, also is provided with the signal comparator circuit and the detecting circuit of parallel connection between said signal amplifier and the logical circuit; Said logical circuit also is connected with lightning protection through self-checking circuit, and the discharge output terminal of said lightning protection also is connected with ground through protective condenser.
2. electrification in high voltage blocking device according to claim 1; It is characterized in that: also comprise AC or DC power supply and the watchdog circuit that is connected with single-chip microcomputer, said AC or DC power supply are connected with the power input of single-chip microcomputer and other circuit respectively through the power supply rearrangeable switch.
3. electrification in high voltage blocking device according to claim 1; It is characterized in that: said communicating circuit comprises RS485 communication module and gsm wireless communication module, and said RS485 communication module is connected with single-chip microcomputer through either-or switch with the gsm wireless communication module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220153095 CN202600030U (en) | 2012-04-12 | 2012-04-12 | High-voltage live displaying and blocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220153095 CN202600030U (en) | 2012-04-12 | 2012-04-12 | High-voltage live displaying and blocking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202600030U true CN202600030U (en) | 2012-12-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220153095 Expired - Fee Related CN202600030U (en) | 2012-04-12 | 2012-04-12 | High-voltage live displaying and blocking device |
Country Status (1)
| Country | Link |
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| CN (1) | CN202600030U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608399A (en) * | 2012-04-12 | 2012-07-25 | 苏州苏海亚电气有限公司 | High-voltage electrified display locking device |
| CN106053925A (en) * | 2016-08-19 | 2016-10-26 | 国家电网公司 | High-voltage line live display blocking device |
-
2012
- 2012-04-12 CN CN 201220153095 patent/CN202600030U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608399A (en) * | 2012-04-12 | 2012-07-25 | 苏州苏海亚电气有限公司 | High-voltage electrified display locking device |
| CN106053925A (en) * | 2016-08-19 | 2016-10-26 | 国家电网公司 | High-voltage line live display blocking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20130412 |