[China Instrument Network Industry Focus] With the full implementation of the ladder water price policy, smart water meters are showing a flourishing situation. Under the new situation of innovation, smart meter technology solutions are emerging in an endless stream. However, no matter how you debate, what kind of technical route is adopted, but in the light of the current industry situation, no matter how well-known large enterprises or non-governmental science and technology workers, no one can break away from the traditional “water meter†model. The smart meter industry lags far behind other technology areas.
If the "inserted IoT water sensor" is taken as an example, the concept of "table" is completely abandoned and the "ultimate model of residents' water supply measurement" is elaborated, thereby playing a role in attracting valuable opinions, ending mutual imitation, low-level technological development, and homogenous vicious competition. The status quo, in order to promote the water measurement industry to "Internet" thinking, respond to the Internet of Things plan of action, bold innovation, to achieve a revolutionary breakthrough in water measurement innovation.
The measurement of water, gas, and heat cannot be compared with electricity metering. Therefore, the power consumption index of water, gas, and heat metering equipment is an important indicator next to sensor technology.
Compared with ten years ago, the technology of the current one-time lithium battery has developed rapidly. Therefore, it is impossible to evaluate the lithium battery with the eyes of ten years ago. That is, as long as the power consumption of the circuit is effectively controlled, once The reliable working time of the lithium battery will not be less than 10 years (except for the battery itself), so the micro-power design of the circuit is very important.
The circuit power consumption of the water sensor of the Internet of Things is optimized. After the design is optimized, the micro-power consumption of the MCU with micro-power consumption is used, and the average current during the normal measurement (flow sensor operation, calendar clock operation) is within 8 microamps. Therefore, In the case of ensuring the life of the battery itself, the product life can be guaranteed in about 10 years.
The current debate over what kind of communication method is used by the "Four Meters" is very fierce. However, most people think that M2M peer-to-peer communications will become the ultimate means of communication because the operator's base station is an existing resource, and increased equipment investment Compared with various transmission systems (power carrier and small wireless), the M2M peer-to-peer method has the advantages of low cost, low operation and maintenance cost, mature technology, and high reliability.
Thanks to the flexibility of the location of the Internet of Things water sensor installations, it is possible to avoid signal "islanding" phenomenon. As long as the mobile phone can communicate, it can achieve 100% communication.
In order to ensure communication distance and reliable communication, the circuit needs to provide a current of about 2A at the instant of communication with the mobile station. This is not possible for lithium batteries. Therefore, a new type of low-leakage supercapacitor is used to ensure Strong communication.
The Cloud Platform Database Internet of Things Water Sensor has a calendar clock system with M2M auto-calibration, which can effectively record the amount of water consumption in a certain period of time. At a specified time, it is passed to the cloud platform database to form big data.
Suppliers of supply terminals and price management companies such as water supply companies, gas companies, and thermal companies can, through authorization, effectively manage the users of their jurisdictions (corresponding to the IoT water quantity sensor equipment number), and upload price data of the region to the server. Check related user information and backup database at any time.
Water user terminal APP
The IoT sensor is not a meter. It is installed where and how it is read. No user care is required. The user is unable to operate. However, the user can use the mobile terminal APP to check the database information, price, and account recharge operations at any time.
Of course, for users without a smart phone, the system provides multiple ways of interacting with users, which are not listed here.
Cost Reduction and Control When the amount of water (gas volume, heat) information is uploaded through the Internet of Things sensor, the water fee (gas fee, heat fee) is automatically generated and automatically reduced in the user's deposit balance. If the balance is insufficient, the SMS will be used Remind users to recharge, can also start a late payment record in accordance with relevant regulations, combined with the social credit system, to achieve the collection of fees.
When it is necessary to cut off the control, the M2M can issue a cut-off or open command. If the IoT sensor is connected to the electric actuator, the cut-off control can be achieved.
Summary Because of the flexible installation, low cost, high reliability, and ease of use, the Internet of Things water sensor will be the ultimate model for residents' water supply measurement.
By analogy, gas metering and heat metering can be implemented in the same way.
It can be foreseen that the quantity of electricity, water, gas, and heat will all be realized in the way of “Internet of Things sensorsâ€, and truly “Internet meters†will have a disruptive impact on the instrument industry, and the concept of “metering instruments†will gradually Indifferent, the meter reading and charging industry is about to end, and the meter industry is facing a major reshuffle.
With the start of the smart city PPP model, social capital supports free installation, insurance companies provide full insurance for equipment and operation safety, and power company involvement and participation of mobile operators will realize the sharing of "electricity, water, gas, and heat" data transmission resources. " "Internet of Things sensors" will eventually replace all types of meters.
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