CN203366479U - Current type cable anti-theft alarm - Google Patents
Current type cable anti-theft alarm Download PDFInfo
- Publication number
- CN203366479U CN203366479U CN 201320478858 CN201320478858U CN203366479U CN 203366479 U CN203366479 U CN 203366479U CN 201320478858 CN201320478858 CN 201320478858 CN 201320478858 U CN201320478858 U CN 201320478858U CN 203366479 U CN203366479 U CN 203366479U
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- alarm
- current
- cable
- theft
- current monitor
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Abstract
The utility model discloses a current type cable anti-theft alarm, relating to the technical field of cable anti-theft. The alarm installs a current monitor for detecting the current magnitude on a cable, a voice alarm device is connected on the current monitor, and a loudspeaker is arranged at the output end of the voice alarm device. The current monitor includes a processing module connected with the voice alarm device, and a current detection module connected with the processing module. and the current monitor, the voice alarm device and the loudspeaker are arranged in a housing. The current type cable anti-theft alarm provided is advantageous in that the false alarm caused by the wireless communication is overcome, and the alarm correct rate reaches 100%; the investment for expensive equipment such as a monitoring center, an emission platform, or an industrial control computer is saved, and the funding only requires several hundred yuan; the anti-theft alarm provided is simple in installation and convenient to use, and is free of replacing emission cells annually; and the alarm speed is fast, and the alarm information can be emitted in one second when a cable is stolen.
Description
Technical field
The utility model relates to the cable theft-prevention technical field, a kind of current mode anti-theft alarm for cable specifically, the service cable that is mainly used in 24 hours operational outfits prevents stolen place, is specially adapted to expressway variable message plate, makes a video recording and first-classly can't nurse and the cable theft-prevention of no-break power unit away from power distribution room or duty room.
Background technology
Service cable is stolen or by be cut off be recurrent thing in this period, again because of the rise of market copper material price, add highway remote equipment service cable long, the type selecting diameter is large, cause service cable often stolen, cable stolen phenomenon repeatedly even appears in some highway sections, makes the equipment such as expressway variable message plate can't issue in time traffic information, easily causes more traffic hazard.
Through investigation, existing market cable panalarm mainly contains intelligence, the informationalized warning systems such as tunnel cable, road lighting cable.Mainly by on-site terminal, Surveillance center and cordless communication network three parts, formed.Utilize the means such as Surveillance center, mobile platform, radio alarming, complete the stolen feedback information of cable.Although function is many, price comparison is expensive, and system is more complicated also.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the utility model provides a kind of current mode anti-theft alarm for cable, is not establishing Surveillance center, does not configure in the situation of the equipment such as industrial computer, completes the stolen warning function of cable.
The utility model is realized with following technical scheme: a kind of current mode anti-theft alarm for cable, current monitor for detection of size of current is installed on cable, connect an audio communication warning device on current monitor, audio communication warning device output terminal connects loudspeaker; Described current monitor comprises a processing module be connected with the audio communication warning device, the current detection module be connected with processing module; Current monitor, audio communication warning device and loudspeaker are arranged in a housing.
The beneficial effects of the utility model are
1, overcome the false alarm defect that wireless transmission may cause, the warning accuracy reaches 100%;
2, without Surveillance center, the expensive device such as flat pad, industrial computer drop into, and fund input only needs hundreds of unit;
3, install simply, easy to use, without changing emission cell every year;
4, alarm velocity piece, when cable occurs when stolen to send warning message in 1 second.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is the utility model theory diagram.
Embodiment
As shown in Figure 1, a kind of current mode anti-theft alarm for cable is the current monitor be equipped with on cable for detection of size of current, connects an audio communication warning device on current monitor, and audio communication warning device output terminal connects loudspeaker; Described current monitor comprises a processing module be connected with the audio communication warning device, the current detection module be connected with processing module; Current monitor, audio communication warning device and loudspeaker are arranged in a housing.
Wherein, housing adopts aluminium casing, can effectively shield external interference.Current monitor comprises processing module and current detection module, and processing module comprises single-chip microcomputer, and the peripheral circuit of crystal oscillator and electric capacity formation, for the monitoring load current conditions.
The course of work: no matter single-phase load or threephase load, appoint and get load one phase power supply and connect with the utility model; Current detection module has or not by the monitoring load electric current, and then outputs signal to processing module.When the electric current of current detection module detection surpasses setting value, signal processing module is by driving relay output switch amount signal driver loudspeaker to send chimes of doom.
The utility model warning accuracy reaches 100%, and equipment failure rate is zero, has contained the frequent stolen phenomenon of cable fully, in the past few years, arrests altogether tens of thiefs.And current mode anti-theft alarm for cable volume is little, is convenient to installation and maintenance, expense is low, simple and practical, and cost performance is very high, has good marketing prospect.
Claims (2)
1. a current mode anti-theft alarm for cable is characterized in that: the current monitor for detection of size of current is installed on cable, connects an audio communication warning device on current monitor, audio communication warning device output terminal connects loudspeaker; Described current monitor comprises a processing module be connected with the audio communication warning device, the current detection module be connected with processing module; Current monitor, audio communication warning device and loudspeaker are arranged in a housing.
2. current mode anti-theft alarm for cable according to claim 1, is characterized in that: described housing employing aluminium casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320478858 CN203366479U (en) | 2013-08-06 | 2013-08-06 | Current type cable anti-theft alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320478858 CN203366479U (en) | 2013-08-06 | 2013-08-06 | Current type cable anti-theft alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203366479U true CN203366479U (en) | 2013-12-25 |
Family
ID=49814212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320478858 Expired - Lifetime CN203366479U (en) | 2013-08-06 | 2013-08-06 | Current type cable anti-theft alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203366479U (en) |
-
2013
- 2013-08-06 CN CN 201320478858 patent/CN203366479U/en not_active Expired - Lifetime
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131225 |