[Chinese instrument network meter patent] creative limit, instrumentation invention. Today, we introduce a national patent for invention—a smart IC meter with ladder pricing function. The patent was applied by Chengdu Qinchuan IOT Technology Co., Ltd. and it was authorized on August 29, 2017.
Content Description
The present invention relates to a water meter. More specifically, the present invention relates to an IC card smart water meter with a ladder pricing function.
Background of the invention
With the development of society, the use demand of tap water has increased year by year. In response to the unified deployment of energy price plans by the National Development and Reform Commission, some water companies will implement a stepped price billing operation mode for terminal water meters, but currently mainstream smart water meters do not have The function of ladder valuation, due to the differences in the time and the control end of some of the similar products on the market, it is impossible to implement a unified price ladder adjustment and price adjustment in the pricing process, which results in inconsistent billing in the operation of the water company. Therefore, it is necessary to study and improve the functions of existing mainstream smart water meters.
Summary of the Invention
One of the objectives of the present invention is to provide an IC card smart meter with a ladder pricing function aiming at solving the above insufficiencies, so as to solve the problem that the IC card smart water meter in the prior art does not have the function of ladder pricing, and the time and control of the similar product table end. There are differences at the end, causing technical problems such as pricing and price adjustment are not uniform.
In order to solve the above technical problems, the present invention adopts the following technical solutions: The invention provides an IC card intelligent water meter with ladder pricing function, including a ladder pricing main control module, an IC card information exchange module, a clock chip and water flow measurement And the ladder-based pricing main control module is respectively connected with an IC card information exchange module, a clock chip, and a water flow measuring device, and the ladder-counting main control module includes a processor and a memory, and the processor is connected with a memory; The IC card information exchange module is used to read the price plan instruction in the IC card and transmit it to the processor; the water flow measurement device is used to transmit the water flow counting result to the processor; and the processor continues according to the period in the price plan. At time, the cumulative amount of water used for the duration of the recording cycle is stored in memory.
The figure is a schematic block diagram for illustrating the structure of an intelligent water meter of an IC card according to an embodiment of the present invention.
The processor is configured to store the price plan in the price plan instruction into a memory, and the processor can synchronize the clock information of the clock chip with the time of the control end, so that the time of the clock chip is consistent with the time of the control end; according to the price plan The initial price ladder in the price calculation of the counting result; and the processor also reads the accumulated water consumption in the duration of the cycle in the memory, compares it with the upper limit value of the initial price step, and judges the accumulated water consumption in the duration of the current cycle. Whether to reach the upper limit of the initial price ladder, if the judgment result is yes, the price calculation is performed on the count result according to the next price ladder in the price plan; otherwise, the price calculation is continued on the current price ladder.
The processor is further configured to determine whether the current time is the same as the end time of the cycle in the price scheme according to the time in the clock chip. If the determination result is yes, the current cycle is considered to be completed, and the accumulated water consumption in the cycle duration in the memory is considered. Cleared, and reset to the initial price ladder of the price plan to calculate the price of the counter result; otherwise, continue to calculate the price of the counter result by the current price step.
As a preference, a further technical solution is: the price plan includes a current price plan and a new price plan, and the current price plan and the new price plan are respectively stored by the processor to a memory, and the new price plan is read by the processor. The execution time is compared with the current time in the clock chip to determine whether the current time meets the execution time of the new price plan. If the judgment result is yes, the current price plan is replaced with the new price plan and executed, otherwise the current execution continues. Price plan.
A further technical solution is: the memory also stores recharge data, which is used by the processor to calculate the price of the counting result according to the current price ladder, and after the calculation result is obtained, the value of the calculation result is recharged from the memory. Deducted from data. The processor in the ladder pricing main control module also accesses a display for the processor to simultaneously record all accumulated water consumption and accumulated water consumption for the duration of the cycle, store it in memory, and read it from the memory by the processor. All accumulative water consumption and accumulated water consumption for the duration of the cycle are shown on the display. The processor judges whether the current cycle ends as follows: First, it is judged whether the current day is the same as the cycle start date in the current price scheme according to the time in the clock chip. If the judgment result is no, the current price ladder pair count result is continued to be continued. The price calculation is performed, and conversely, the condition of the start month of the cycle is continued to be determined by the following formula: mod(m+12-M, T)=0.
In the above equation, mod is the remainder function, M is the starting month of any period of the current price scheme, m is the current month of the time of the clock chip, T is the period duration in the current price scheme, and T is 12 The divisor, when the formula is established, considers that the period is over; otherwise, it continues to calculate the price according to the current price ladder.
The price plan instruction also includes clock information for the processor to synchronize the clock information to the clock chip. The method for the processor to synchronize the clock information of the clock chip with the time of the control end is: the control end synchronizes the current clock information to the clock synchronizer, and the clock synchronizer continues to run with the current clock information as the starting point through its internal clock function. Then, the clock synchronization IC card is inserted into the clock synchronizer, and the clock synchronizer writes the current clock information during continuous operation to the clock synchronization IC card, and then the clock synchronization IC card is inserted into the IC card information exchange module, and the clock is read by the processor. The clock information in the IC card is synchronized and synchronized to the clock chip.
Compared with the prior art, one of the beneficial effects of the present invention is that the terminal simultaneously synchronizes time with the control terminal in the process of information exchange with the control terminal, so that the time of the terminal is always consistent with that of the control terminal, and the two are avoided. The time deviation occurs, resulting in inconsistent pricing and price adjustment; and multiple price ladders are set in the price plan. The table processor can determine whether to start the next price ladder in real time based on the accumulated water consumption during the cycle duration. It is also possible to judge whether the current cycle should be ended according to the cycle end time in the price plan. In addition to time synchronization, the entire process is completed at the table side; meanwhile, the IC card intelligent water meter with ladder pricing function provided by the present invention has a simple structure. In addition to the realization of ladder pricing, it also ensures the consistency of time between the table and the control end, and can be improved based on the existing smart meter IC card, a wide range of applications.
For more information, please download the full specification of the patent.
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