CN104408842B - Novel guard against theft and alarm system for wind driven generator - Google Patents
Novel guard against theft and alarm system for wind driven generator Download PDFInfo
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- CN104408842B CN104408842B CN201410662748.8A CN201410662748A CN104408842B CN 104408842 B CN104408842 B CN 104408842B CN 201410662748 A CN201410662748 A CN 201410662748A CN 104408842 B CN104408842 B CN 104408842B
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- 238000009434 installation Methods 0.000 claims description 17
- 230000006855 networking Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 description 12
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/02—Mechanical actuation
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- Burglar Alarm Systems (AREA)
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Abstract
The invention relates to a novel guard against theft and alarm system for a wind driven generator. The novel guard against theft and alarm system comprises a power supply unit, a trigger switch and an alarm host, wherein the power supply unit is used for collecting electric signals illegally triggered and generated by the wind driven generator, and the alarm host is used for collecting signal instructions and alarm signals sent by the illegally triggered trigger switch; the power supply device comprises a conventional power supply module and a reserve power supply module which can directly power the alarm system and are connected in parallel; the alarm system further comprises a self-hold relay KA, wherein the self-hold relay KA is connected with the trigger switch serially, and a circuit loop is formed by the connection of the self-hold relay KA and the power supply module; a normally open contact KA-1 of the self-hold relay KA is serially connected with the alarm host, and a circuit loop is formed by the connection of the normally open contact KA-1 and the reserve power supply module; when the reserve power supply module is served as a power supply and is triggered by the trigger switch, the self-hold relay KA works and the normally open contact KA-1 is closed, and then the alarm host is powered by thee power supply device, and the alarm host can be started and start to work after the power supply is switched.
Description
Technical field
The present invention relates to a kind of alarm control system, a kind of novel wind-driven generator guard against theft and alarm system.
Background technology
Under the nervous support with national policy of present stage energy supply, Wind Power In China emerges rapidly, and becomes whole world wind
The place that electricity is the most active, wind-driven generator is the capital equipment of generating, is the dynamic power machine converting wind energy into mechanical power.
In order to preferably gather wind energy, wind-driven generator is often arranged in the environment that wind-force is bigger, and these environment are meagrely-populated, often
Often have some lawless persons wind-driven generator is destroyed, bring challenge greatly to the management of wind energy turbine set.
Wind-driven generator guard against theft and alarm systems more of the prior art all pass through to introduce within wind-driven generator from the external world
Conventional power supply is that wind-driven generator guard against theft and alarm system is powered, but when normal power supplies goes wrong, wind-driven generator
Guard against theft and alarm system will lose efficacy；Additionally in the construction phase of wind-driven generator, wind-driven generator guard against theft and alarm system does not has yet
There is power supply, due to monitoring system imperfection, bring opportunity to lawless person, cause serious economic loss.
Given this present invention is proposed.
Summary of the invention
The purpose of the present invention is for overcoming the deficiencies in the prior art, it is provided that a kind of reliability is higher, can send out the wind-force of construction period
Motor is monitored, and the novel wind-driven generator guard against theft and alarm system that promotional value is higher.
In order to realize this purpose, the present invention adopts the following technical scheme that a kind of novel wind-driven generator guard against theft and alarm system,
Illegally touched and produced the triggering of the signal of telecommunication switched including: electric supply installation with for gathering wind-driven generator, be used for gathering
That is illegally touched triggers the signal instruction that switch sends the alarm host machine sending alarm signal；
Described electric supply installation includes the conventional electron power module that directly can power for warning system and be in parallel and standby
Power module；When conventional electron power module breaks down, standby power supply module can also continue power supply for warning system.
Described warning system also includes a latch-in relay KA, described triggering switch and latch-in relay KA
Concatenate mutually, and be connected with standby power supply module and form circuit loop；
During normal power supplies module energy normal power supply, it can be alarm host machine continued power.
Normal power supplies module is as power supply and when described triggering switch is touched, and triggering switch will be to alarm host machine
One alarm signal, alarm host machine is reported to the police immediately；
The normally opened contact KA-1 of latch-in relay KA and alarm host machine concatenation, and be connected also with standby power supply module
Form circuit loop；
Standby power supply module is powered and when described triggering switch is touched, latch-in relay KA works and makes normally opened
Contact KA-1 closes, and standby power supply module is powered with being alarm host machine, and the alarm host machine after switching on power starts and opens
Beginning work.
Can not power and when triggering switch and being triggered in normal power supplies module, after latch-in relay KA receives the signal of telecommunication
Starting working, and make the normally opened contact of latch-in relay KA close, standby power supply module is that alarm host machine is powered, report
Alert main frame obtain electric after start working.
In aforesaid this novel wind-driven generator guard against theft and alarm system, it is multiple that described guard against theft and alarm system also has time delay
Position circuit, described time-delay reset circuit includes for the time relay KT of alarm host machine warning time delay with after reporting to the police
Reset time relay KT1, time relay KT and time relay KT1 parallel connection after with latch-in relay KA
Normally opened contact KA-2 be serially connected with the two poles of the earth of electric supply installation；
The normally-closed contact KT-1 and normally-closed contact KT-2 of described time relay KT continues with triggering switch 1 and self-sustaining
Electrical equipment KA phase is serially connected with the two poles of the earth of electric supply installation, and normally-closed contact KT-1 and normally-closed contact KT-2 is located at self-sustaining relay
Device KA two ends；
The normally opened contact KT1-1 and normally opened contact KT1-2 of described time relay KT1, described normally opened contact
KT1-1 and normally opened contact KT1-2 is located at the two ends of latch-in relay KA and is connected with electric supply installation；
There is provided reverse current for latch-in relay KA after the described time relay KT1 delay adjustments time and make self-insurance
Hold relay K A to return to trigger the state before switch is triggered；
The alarm signal incoming end of described alarm host machine also meets the normally opened contact KT-3 of time relay KT, and described often
Open contact KT-3 and trigger switch in parallel.
When normal power supplies module is as power supply and when triggering switch and being triggered, and latch-in relay KA obtains telecommunications
Starting working after number, normally opened contact KA-2 closes, and time relay KT and time relay KT1 obtains electric starting working,
After time relay KT obtains the electric delay adjustments time, its normally-closed contact KT-1 and normally-closed contact KT-2 disconnects, time relay
Device KT1 obtains normally opened contact KT1-1 and normally opened contact KT1-2 Guan Bi after the setting time that electric time delay is longer, and gives self-insurance
Hold mono-reverse signal of telecommunication of relay K A, make latch-in relay KA return to trigger the state before switch is triggered,
Now normally opened contact KA-2 disconnects, time relay KT and time relay KT1 power-off, time relay KT's
Normally-closed contact KT-3 disconnects, and makes alarm signal be cut off, and alarm host machine quits work.
In aforesaid this novel wind-driven generator guard against theft and alarm system, described trigger that switch includes mutually linking normal
Open the alarm signal access terminal phase of contact SB and normally opened contact SB-1, described normally opened contact SB-1 and alarm host machine
Connecting, described normally opened contact SB concatenates with latch-in relay KA phase；The alarm signal of described alarm host machine connects
Enter end and also meet the normally opened contact KT-3 of time relay KT, and described normally opened contact KT-3 is in parallel with normally opened contact SB-1.
In aforesaid this novel wind-driven generator guard against theft and alarm system, described standby power supply module includes accumulator E
And solar energy photovoltaic panel, described solar energy photovoltaic panel is connected with accumulator E two ends by wire.
In aforesaid this novel wind-driven generator guard against theft and alarm system, described conventional electron power module includes relay
Device KA2, the normally opened contact KA2-1 and/or normally opened contact KA2-2 of described relay K A2 and standby power supply module
Concatenate mutually.
In aforesaid this novel wind-driven generator guard against theft and alarm system, described latch-in relay KA also includes often
Closed contact KA-3, described normally-closed contact KA-3 concatenate mutually with solar energy photovoltaic panel.
In aforesaid this novel wind-driven generator guard against theft and alarm system, described conventional electron power module also includes one
The normally-closed contact KA1-1 and/or normally-closed contact KA1-2 of latch-in relay KA1, described latch-in relay KA1
It is located at or is respectively arranged on the loop that conventional electron power module is connected with alarm host machine.
In aforesaid this novel wind-driven generator guard against theft and alarm system, described alarm host machine be GSM alarm host machine,
Bus alarm host machine, GPRS network alarm main frame, CDMA burglar alarm main frame, zigbee networking alarm host machine or
Audible-visual annunciator.
Use after technical solutions according to the invention, bring following beneficial effect:
The present invention is that warning system is powered by arranging conventional electron power module and standby power supply module, when conventional electron electricity
Source module makes warning system have the function of warning under conditions of not having power supply, improves warning system dramatically
Reliability；Wherein standby power supply module also has the function of automatic time-delay reset, it is ensured that standby power supply module has enough
Electricity maintains the normal work of warning system, largely on improve the reliability of warning system, there is preferably popularization
It is worth.
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described in further detail.
Accompanying drawing explanation
The schematic diagram of the control system of Fig. 1: the present invention.
Wherein: 1, trigger switch, 2, electric supply installation, 3, alarm host machine, 4, accumulator E, 5, stand-by power supply mould
Block, 6, conventional electron power module, 7, solar energy photovoltaic panel.
Detailed description of the invention
In the way of specific embodiment, the present invention is introduced further below in conjunction with the accompanying drawings:
As it is shown in figure 1, a kind of reliability is higher, the wind-driven generator of construction period can be monitored, and promotional value is relatively
High novel wind-driven generator guard against theft and alarm system, comprising: electric supply installation 2 and to be used for gathering wind-driven generator non-
Method is touched and produces the triggering switch 1 of the signal of telecommunication, switchs the signal instruction sent also for gathering the triggering illegally touched
Send the alarm host machine 3 of alarm signal；Described electric supply installation 2 includes directly can powering for warning system and be in parallel
Conventional electron power module 6 and standby power supply module 5；When conventional electron power module 6 breaks down, stand-by power supply
Module 5 can also continue power supply for warning system.
Described warning system also includes a latch-in relay KA, described triggering switch 1 and latch-in relay KA
Concatenate mutually, and be connected with standby power supply module 5 and form circuit loop；During normal power supplies module 6 energy normal power supply,
It can be alarm host machine continued power.
Normal power supplies module 6 is as power supply and when described triggering switch 1 is touched, and triggering switch 1 will be to report
Alert 3 one alarm signals of main frame, alarm host machine 3 is reported to the police immediately；The normally opened contact KA-1 of latch-in relay KA and
Alarm host machine concatenates, and is connected with standby power supply module 5 and forms circuit loop；Standby power supply module 5 is powered and works as
When described triggering switch 1 is touched, latch-in relay KA works and makes normally opened contact KA-1 close, standby electricity
Source module 5 is powered with being alarm host machine 3, and the alarm host machine 3 after switching on power starts and starts working.
When can not power in normal power supplies module 6 and be triggered when triggering switch 1, latch-in relay KA receives telecommunications
Starting working after number, and make the normally opened contact of latch-in relay KA close, standby power supply module 5 is alarm host machine 3
Power supply, alarm host machine 3 electric after start working.
In this novel wind-driven generator guard against theft and alarm system, described guard against theft and alarm system also has time-delay reset electricity
Road, described time-delay reset circuit include for alarm host machine 3 report to the police time delay time relay KT and after reporting to the police multiple
Position time relay KT1, time relay KT and time relay KT1 parallel connection after with latch-in relay KA's
Normally opened contact KA-2 is serially connected with the two poles of the earth of electric supply installation；The normally-closed contact KT-1 of described time relay KT and normally closed
Contact KT-2 and triggering switch 1 and latch-in relay KA phase are serially connected with the two poles of the earth of electric supply installation, and normally-closed contact KT-1
It is located at latch-in relay KA two ends with normally-closed contact KT-2；The normally opened contact KT1-1 of described time relay KT1
It is located at latch-in relay KA's with normally opened contact KT1-2, described normally opened contact KT1-1 and normally opened contact KT1-2
Two ends are also connected with electric supply installation；It is latch-in relay KA after the described time relay KT1 delay adjustments time
Reverse current is provided and makes latch-in relay KA return to trigger the state before switch is triggered.
When normal power supplies module 6 is as power supply and when triggering switch 1 and being triggered, and latch-in relay KA obtains
Starting working after the signal of telecommunication, normally opened contact KA-2 closes, and time relay KT and time relay KT1 must establish by cable the beginning
Work, after time relay KT obtains the electric delay adjustments time, its normally-closed contact KT-1 and normally-closed contact KT-2 disconnects, time
Between relay K T1 obtain normally opened contact KT1-1 and normally opened contact KT1-2 Guan Bi after the setting time that electric time delay is longer, and
To mono-reverse signal of telecommunication of latch-in relay KA, make latch-in relay KA return to trigger switch be triggered before
State, now normally opened contact KA-2 disconnects, time relay KT and time relay KT1 power-off, the time relay
The normally-closed contact KT-3 of KT disconnects, and makes alarm signal be cut off, and alarm host machine quits work.
In this novel wind-driven generator guard against theft and alarm system, described trigger that switch 1 includes mutually linking normally opened touch
Point SB and normally opened contact SB-1, described normally opened contact SB-1 access terminal with the alarm signal of alarm host machine and are connected,
Described normally opened contact SB concatenates with latch-in relay KA phase.
In this novel wind-driven generator guard against theft and alarm system, described standby power supply module 5 include accumulator E4 and
Solar energy photovoltaic panel 7, described solar energy photovoltaic panel 7 is connected with accumulator E4 two ends by wire.
In the present embodiment, solar panels are mountable on the brandreth of fan engine room top anemoclinograph, warning system and storage
Battery is installed on first segment tower barrel platform, to prevent invasion personnel from destroying.
In this novel wind-driven generator guard against theft and alarm system, described conventional electron power module 6 includes relay
KA2, the normally opened contact KA2-1 and/or normally opened contact KA2-2 of described relay K A2 go here and there mutually with standby power supply module
Connect.
In this novel wind-driven generator guard against theft and alarm system, described latch-in relay KA also includes normally-closed contact
KA-3, described normally-closed contact KA-3 concatenate mutually with solar energy photovoltaic panel.
In this novel wind-driven generator guard against theft and alarm system, described conventional electron power module 6 also includes a self-insurance
Holding relay K A1, the normally-closed contact KA1-1 and/or normally-closed contact KA1-2 of described latch-in relay KA1 set
In or be respectively arranged on the loop that conventional electron power module 6 is connected with alarm host machine 3.
In this novel wind-driven generator guard against theft and alarm system, described alarm host machine 3 can be GSM alarm host machine,
Bus alarm host machine, GPRS network alarm main frame, CDMA burglar alarm main frame, zigbee networking alarm host machine or
Audible-visual annunciator.Preferably, alarm host machine 3 can be GSM main frame, configuration remote monitoring, propaganda directed to communicate, field alert,
The function such as SMS alarm, telephone call, warning signal can report to the police in blower fan, also can propaganda directed to communicate warning by alarm center in the distance,
Strengthen fright effect.
The specific works step of the present invention is as follows:
1, under normal operating mode:
Being powered for warning system as conventional electron power supply 6 by electrical network, first this power supply being passed through AC/DC changeover switch will
Alternating current is converted into the unidirectional current suitable with alarm host machine 3.Simultaneously because KA2-1, KA2-2 disconnect, KA-3 is normal
Closing, now accumulator E is in charging on daytime, under the circulation slightly leaked electricity night, one under the effect of solar energy photovoltaic panel
The straight state keeping battery electric quantity full.
If now there being people to open Damper for air-blower, (this signal is that crawl triggers, as long as opening to instantaneous trigger universal travel switch SB
Door just can trigger, and SB-2 is the same type normally opened auxiliary node of independence of SB), enabling signal is received the report for police service main frame by SB-2
At 3 signals collecting, alarm host machine 3 carries out phone and SMS alarm.
2, under the operating mode after blower fan has a power failure:
Relay K A1 and KA2 dead electricity, Switching Power Supply is not powered, and latch-in relay KA (can use magnetic to keep
Relay or common double coil latch-in relay, but voltage circuit connection when resetting is slightly different, and the present invention protects with magnetic
As a example by holding relay) auxiliary node KA-1, KA-2 normally opened, alarm host machine 3 dead electricity, time relay KT and
The equal dead electricity of KT1, does not now have any electrical equipment.KA2-1, KA2-2 and KA-3 are normally closed, and accumulator E1 is connected to
DC12V bus, but due to without electricity consumption of equipment, the current supply circuit of E1 is equivalent to open circuit, and still accepts photovoltaic panel continuing
Charging.
The most once someone invades, and enabling signal SB is triggered by crawl, and KT-1, KT-2 and KA2-3 are in normally closed,
Then latch-in relay adhesive keeping.KA-1 adhesive, KA1-2 is normally closed, and alarm host machine must electrically activate.KA-3 disconnects,
Solar panels stop charging to accumulator E1.KA-2 adhesive simultaneously, time relay KT obtains electric time delay and (is set to 30
Second), KT-2 time delay adhesive, provide alarm signal for the alarm host machine having been started up, complete phone and SMS alarm, this
Time KT-1, KT-2 time delay disconnect.
After completing phone and SMS alarm, time relay KT1 is as the use that automatically resets, and KT1 obtains electric time delay and (is set to
30 minutes), run after 30 minutes until alarm host machine, KT1-1, KT1-2 adhesive, and KT-1, KT-3 disconnect,
Then latch-in relay KA has obtained a backward voltage, reinstatement state.KA-1 and KA-2 is the most normally opened, reports to the police main
Machine and each relay are all stopped power supply, and solar panels recover to the pattern of accumulator E1 charging, it is ensured that battery electric quantity is sufficient,
Wait triggering of next time reporting to the police.
The present invention is that warning system is powered by arranging conventional electron power module and standby power supply module, when conventional electron electricity
Source module makes warning system have the function of warning under conditions of not having power supply, improves warning system dramatically
Reliability；Wherein standby power supply module also has the function of automatic time-delay reset, it is ensured that standby power supply module has enough
Electricity maintains the normal work of warning system, largely on improve the reliability of warning system, there is preferably popularization
It is worth.
The foregoing is only the preferred embodiment of the present invention, it is noted that for the ordinary skill in the art,
Without departing from the principles of the present invention, it is also possible to make various deformation and improvement, this also should be considered as the protection of the present invention
In the range of.
Claims (7)
1. a novel wind-driven generator guard against theft and alarm system, including: electric supply installation (2) with for gathering triggering switch (1) that wind-driven generator is illegally touched and produces the signal of telecommunication, for gathering the signal instruction that triggering switch (1) illegally touched sends the alarm host machine (3) sending alarm signal；It is characterized in that:
Described electric supply installation (2) includes conventional electron power module (6) and the standby power supply module (5) directly can powered for warning system and be in parallel；
Described warning system also includes that a latch-in relay KA, described triggering switch (1) concatenate with latch-in relay KA phase, and be connected with standby power supply module (5) and form circuit loop；
The normally opened contact KA-1 of latch-in relay KA and alarm host machine (3) concatenation, and be connected with standby power supply module (5) and form circuit loop；
Standby power supply module (5) is as power supply and when described triggering switch (1) is touched, latch-in relay KA works and makes normally opened contact KA-1 close, electric supply installation (2) is with being alarm host machine (3) power supply, and the alarm host machine (3) after switching on power starts and starts working；
Described guard against theft and alarm system also has time-delay reset circuit, described time-delay reset circuit is serially connected with the two poles of the earth of electric supply installation (2) with the normally opened contact KA-2 of latch-in relay KA after including the time relay KT1, time relay KT that for the time relay KT of alarm host machine (3) warning time delay and reset after reporting to the police and time relay KT1 parallel connection；
The normally-closed contact KT-1 and normally-closed contact KT-2 of described time relay KT is serially connected with the two poles of the earth of electric supply installation (2) with triggering switch (1) and latch-in relay KA phase, and normally-closed contact KT-1 and normally-closed contact KT-2 is located at latch-in relay KA two ends；
The normally opened contact KT1-1 and normally opened contact KT1-2 of described time relay KT1 is located at the two ends of latch-in relay KA and is connected with electric supply installation (2)；
There is provided reverse current for latch-in relay KA after the described time relay KT1 delay adjustments time and make latch-in relay KA return to trigger the state before switch (1) is triggered；
The alarm signal incoming end of described alarm host machine also meets the normally opened contact KT-3 of time relay KT, and described normally opened contact KT-3 is in parallel with triggering switch (1).
Novel wind-driven generator guard against theft and alarm system the most according to claim 1, it is characterized in that: described triggering switch (1) includes normally opened contact SB and the normally opened contact SB-1 mutually linked, described normally opened contact SB-1 accesses terminal with the alarm signal of alarm host machine (3) and is connected, and described normally opened contact SB concatenates with latch-in relay KA phase；And described normally opened contact KT-3 is in parallel with normally opened contact SB-1.
Novel wind-driven generator guard against theft and alarm system the most according to claim 1 and 2, it is characterized in that: described standby power supply module (5) includes that accumulator E (4) and solar energy photovoltaic panel (7), described solar energy photovoltaic panel (7) are connected with accumulator E (4) two ends by wire.
Novel wind-driven generator guard against theft and alarm system the most according to claim 3, it is characterized in that: described conventional electron power module (6) includes relay K A2, the normally opened contact KA2-1 and/or normally opened contact KA2-2 of described relay K A2 concatenate mutually with standby power supply module (5).
Novel wind-driven generator guard against theft and alarm system the most according to claim 4, it is characterised in that: described latch-in relay KA also includes that normally-closed contact KA-3, described normally-closed contact KA-3 concatenate mutually with solar energy photovoltaic panel (7).
6. according to the novel wind-driven generator guard against theft and alarm system described in claim 4 or 5, it is characterized in that: described conventional electron power module (6) also includes that the normally-closed contact KA1-1 and/or normally-closed contact KA1-2 of a latch-in relay KA1, described latch-in relay KA1 are located on the loop that conventional electron power module (6) is connected with alarm host machine (3).
Novel wind-driven generator guard against theft and alarm system the most according to claim 6, it is characterised in that: described alarm host machine (3) is GSM alarm host machine, bus alarm host machine, GPRS network alarm main frame, CDMA burglar alarm main frame, zigbee networking alarm host machine or audible-visual annunciator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410662748.8A CN104408842B (en) | 2014-11-19 | 2014-11-19 | Novel guard against theft and alarm system for wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410662748.8A CN104408842B (en) | 2014-11-19 | 2014-11-19 | Novel guard against theft and alarm system for wind driven generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104408842A CN104408842A (en) | 2015-03-11 |
| CN104408842B true CN104408842B (en) | 2017-01-11 |
Family
ID=52646468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410662748.8A Expired - Fee Related CN104408842B (en) | 2014-11-19 | 2014-11-19 | Novel guard against theft and alarm system for wind driven generator |
Country Status (1)
| Country | Link |
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| CN (1) | CN104408842B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109272689A (en) * | 2018-09-29 | 2019-01-25 | 观为监测技术无锡股份有限公司 | A kind of Wind turbines working environment monitoring device and wind power plant |
| CN111165156A (en) * | 2018-11-13 | 2020-05-19 | 苏州宝时得电动工具有限公司 | Self-moving equipment and alarm method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11134563A (en) * | 1997-10-28 | 1999-05-21 | Bridgestone Cycle Co | Theft prevention system and theft alarm device used for the same |
| CN202049573U (en) * | 2011-04-29 | 2011-11-23 | 孙海涛 | Antitheft alarm device for tower door of wind-driven generator set |
| CN203149746U (en) * | 2013-03-26 | 2013-08-21 | 河南省电力公司鹤壁供电公司 | Burglar alarm for electric power equipment |
| CN203721008U (en) * | 2014-01-16 | 2014-07-16 | 天津蓝巢特种吊装工程有限公司 | Solar wireless anti-theft alarm system for wind generating set |
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2014
- 2014-11-19 CN CN201410662748.8A patent/CN104408842B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN104408842A (en) | 2015-03-11 |
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