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How to choose in order to and warning apparatus of guard against theft of analyt
From;    Author:Stand originally

3.Of the product practical. Choose warning apparatus of domestic guard against theft to want to integrate household area, structure the multiple element consideration such as value of tectonic characteristic, property, surroundings, but have a few current referenced standard: Wired means has news report ability of reliable, interference rejection cost of strong, parts of an apparatus is low advantage, apply to build and can be inside wall the building; of obligate jumper but its maneuverability is poor, disadvantageous the changeful requirement that gets used to user and product, the maintenance to obligate jumper and change wireless means of big; of tall, charge can avoid difficulty the jumper influence between probe and lead plane is indoor decorate, have agile, concise advantage, but also exist to accept the external world easily a variety of elements cost of 1000 faze, parts of an apparatus is relatively advanced defect. Avoiding the measure that enters from the door extremely is mature, use magnetism reed switch to be in charge of namely / the open that magnet explores a door to coming. But should notice to have call the police with delay time immediately two kinds call the police differently spark means, before one kind can produce the spot to call the police instantly, right the person that inbreak can remove block to threaten action instantly, but if before he open the door, the user is like,did not undertake withdraw a garrison is operated, can arise to call the police by accident and reach neighborhood to cause to him user annoy. A kind of delay time sparks after newspaper police type can issue clew news when door open, hint the user that forgets withdraw a garrison undertakes withdraw a garrison is operated in time, if did not receive signal of withdraw a garrison in the lead plane inside proper time, lead plane reentry calls the police all right. Apparent, a kind of means is provided more after practical. Preventing a thief to enter current and current method from the window is to use passive formula infra-red probe, earlier Chan Jian (use cell of individual heat feeling only) model the element influence such as Yi Shouguang line, air temperature, generation calls the police by accident the false triggering that; suffers the puppy such as mice, cat, dog more easily to cause. Develop gradually later piece multivariate (use cell of many hot feeling) model, reach double ancient bronze mirror (use hot feeling and microwave two kinds of component) model, or 3 ancient bronze mirror (use hot feeling and microwave repass of two kinds of component is odd a machine undertake operation is handled) model the occurence rate that in an attempt to reduces to call the police by accident. This kind of probe calls the police by accident besides easy generation and dawn can be used in the environment indoors only beyond, still a problem restricted his to use in household: The defensive area of this kind of probe is plane of stereo and rather than, when having master activity indoors, cannot have the place troops on garrison duty of whole sealing type to the bedroom. Newest method is to use invisible to firing type infrared ray net of guard against theft, this kind of equipment has two kinds of type: Room exterior needs to use; of adapter power supply wireless transmission means, fan or the one much fan window that can be apart from plane of the wall inside, gate, same wall to the 5 "30m outdoor form meshy and planar shape to defend, can realize " of true " whole sealing to the building defensive; is indoor model use; of batteries power supply wireless transmission means, can install in the balcony and indoor window, door, corridor two side, to 1" 8m the distance executes linear and defensive; this kind of equipment can realize " of true " whole sealing to the building defensive; is indoor model because provide DIY(client proper motion to install more) convenience sex, can achieve motor-driven defence, have economic value more. Prevent to rob, emergency treatment appeals come true with urgent pushbutton, also should make necessary equipment in warning apparatus of domestic guard against theft. If remote controller and urgent pushbutton are an organic whole when, should assess urgent pushbutton to prevent the ability of false triggering. Fire prevention and an index that preventing combustible gas leak also is function of evaluation warning apparatus. Right alarm the newspaper of affection sends kind is function of evaluation warning apparatus / price comparing and practical main index. The most original journal sends a way is to use the site alarm date to the; of person give a warning around relatively all-pervading newspaper sends a way is to call the police the telephone number that lead plane can dial an user automatically to be set beforehand, the specification that can broadcast an user to be recorded beforehand after dial is touched alarm the speech; of the place and apply as village of commodity room house or community joint defence, ask to call the police lead plane has couplet net warning function. Implementing the traditional method that couplet net calls the police is to use computer to receive the data information that comes from special railway line or line, both compare and character, use line deferent data information has circuit reliability tall, maintenance-free, enlarge look is convenient wait for clear advantage. But use computer to receive telephone the data information of the line, again its are not worth: Average PC is assumed hard keep day and night the successive job of machine, if use the industry that can get used to ceaseless machine to work continuously to control personal computer, make product value rises 3 "5 urgently again times, the wasteful; that creates fund uses personal computer to ask to handling the mastery of a skill or technique of personnel tall, the wasteful; that causes manpower resource uses personal computer to face virus to inbreak even from beginning to end, missing, dead machine starts data afresh wait for fatal flaw. Right alarm of affection the main index that distinguishing is function of evaluation warning apparatus. Have couplet net the lead plane of warning function should distinguish alarm affection (if inbreak, the) such as urgent, fire alarm, alarm classify (place of the door, window, room) . Of certain product function practical conflict with the standard (be like need not power source power supply) , certain product function and defensive end conflict (like remote control withdraw a garrison) .
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