【 Weak current College 】 what kind of remote meter reading system cannot use?

At present, the market for a variety of remote meter reading system for a wide range of this product are imposters, what is more, some manufacturers have copied a table are not allowed to have a full refund, in fact, a large number of installed remote meter reading system for real estate developers and property managers are to a large number of installed remote meter reading system does not use the brains and even enable industry-popular sentiment, remote meter reading system would not be able to use, no other product is qualified, so many remote meter reading system suffered great losses of developers in the new development community is forced to use ordinary water meter reading meter by artificial.　　Why construction intellectualization level but increasingly high today appear the "atavism" phenomenon, people cannot help but ask remote meter reading system really cannot use? the answer of course is no, but you sure there are many patterns of three table CC system is not used, the following are based in recent years the industry issues to talk about, what kind of remote meter reading system cannot be used. First, the collector to the kitchen and toilet indoors, most of these products are designed to be a collector received a water meter, collector of the nearest installation in the kitchen or bathroom. 　　All week, kitchen and more humid, especially with hot bath water mist is most acute, and the acquisition of electronic product design, it is the most afraid of is wet and water fog, use a long period of time, will make the circuit board components corrosion rust that accelerate the process of aging, the lower the manufacturers product or even have a short circuit, this installation makes the collector in the use of one to two years after it was damaged, manufacturers have to recover the purchase price, to the detriment of the owners and developers of the interests of property management; second, often more than one collector with a backup power supply, so as long as there is an indoor power circuit, the rest of the collector is unable to work; Thirdly, the service is extremely difficult, because often it home.　　Second, the communication bus home: most of these products is also a collector of a water meter, due to the acquisition of the nearest installation near the water, making the communication bus to attach to a collector must be home on, if a household decoration causing short circuits and circuit breakers of the bus that will likely affect the entire communication lines of normal use, the result is, as a second home for failure the paralysis of the whole system, the same as the home maintenance difficulties, make troubleshooting of very slow, and this is why many of the community of remote meter reading system communication networking community built two to three years, after the success of reasons cannot be debugged.　　3. water meter sender unit is a single-stable: this is the real estate industry generally believe that remote meter reading system can not be used, because the MONOSTABLE sender unit Alnico and Hall element or Reed pipe in critical trigger State at this point if high-frequency on water (high-rise towers are mostly water supply in this way), will enable the pipe vibration caused by the phenomenon of "water hammer", at which point the critical point of the Hall element or Reed pipe will issue a lot of pulses, allows the measurement of reason many hundreds or thousands of units of water consumption, water consumption of this spurt of not only is the user's strong dissatisfaction, refuses to pay, but also raises awareness about remote meter reading system does not trust. 4. water meter and collector respectively purchase to different manufacturers: at present, because a lot of developers will be metered and collector purchase, respectively, and two products of different manufacturers, such as consultations, there is a problem with mutual pointing, eradicated, makes remote meter reading system for normal use.
So, how's remote CC system just reliable? it must satisfy the following points: first, the water meter near the junction box only received water meter cable, line-out home water meters, the collector to outdoor ventilation drying, this will not damage due to damp, and since the data collector communication lines in the outdoors, a household because decorated damage caused by water meter line is only short circuit and the broken line, not only does not affect the entire system of communication, nor will the second decoration caused a short circuit caused by power lines and other collector does not work.　　In this way for several pieces of water, gas, electricity meters with a collector. 2. water meter sender unit is bi-stable: the water meter every one unit of measure, you must also output an "on" signal and an off signal, the signal trigger points in a line on the two endpoints.　　Therefore, "water hammer" simply cannot make it also issued on and off the signal, only a single large amount of output signals, this avoids inaccurate measurement.　　3. water meter sender unit for direct reading of the signal: the meter digital encoder directly into sender signals for acquisition of meter, read out value is the value of the water meter itself is displayed. 4. water meter and collector unified procurement: currently there are specialized production surface of bistable sender unit and dissipation table manufacturers, but it must be compatible with most of the manufacturers of the collector, General each dissipation table you want to increase the cost of $ 30 or 40, although the use effect is good, but cost more, some collector and water meter shall be able to provide manufacturers, the design of its products, targeted properties, and the price is low, it is recommended that you select the range of products.