Household three-meter low-power-consumption ultrasonic metering chip and low-power-consumption control method
A metering chip, ultrasonic technology, applied in volume metering, measuring device, measuring capacity and other directions, can solve the problems affecting the vigorous promotion of ultrasonic household three meters, low integration and high power consumption
Pending Publication Date: 2021-11-02
力创科技股份有限公司 +1
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[0004] At present, the domestic household ultrasonic three-meter chip is mainly composed of the MSP430 series 16-bit microcontroller (MCU) chip of the American TI company, plus the ultrasonic measurement chip GP22 of the German ACAM company, which has the disadvantages of high power consumption and low integration. Vigorously promote the three meters of ultrasonic household
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[0023] The scheme will be described below in conjunction with the accompanying drawings and specific implementation methods.
[0024] figure 1 For a schematic structural diagram of a low-power meter chip provided in an embodiment of the present application, see figure 1 The household three-meter low-power ultrasonic measurement chip provided by the embodiment of the present application includes: an ultrasonic measurement unit, a main MCU, an on-duty MCU and a clock management unit, and the working power of the on-duty MCU is less than that of the main MCU, wherein: The main MCU is connected in communication with the on-duty MCU, the signal detection terminals of the main MCU and the on-duty MCU are all electrically connected to the ultrasonic measurement unit, and the clock management unit is respectively connected to the ultrasonic measurement unit, the main MCU and The on-duty MCU is electrically connected.
[0025] The embodiment of the present application adopts a simple...
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The invention discloses a household three-meter low-power-consumption ultrasonic metering chip and a low-power-consumption control method, and aims to design a dual-core ultrasonic SOC chip, namely a 32-bit main MCU and an ultra-low-power-consumption 4-bit MCU, aiming at the remarkable characteristics that a household water meter and a household gas meter work in a short time in the morning, at noon and at night, and a heat meter works in winter and is static in summer, the MCU is specially used for monitoring whether fluid flows or not and is called as an on-duty MCU. The signal detection end of the main MCU and the signal detection end of the on-duty MCU are both electrically connected with the ultrasonic measurement unit, and the main MCU is electrically connected with the on-duty MCU. When the main MCU detects that the fluid is static, the main MCU enters a dormant state, the on-duty MCU works, and the state of the fluid is continuously monitored through the ultrasonic measuring unit. If the flow velocity of the fluid is disturbed, the on-duty MCU ends the dormant state of the main MCU and enters the dormant state at the same time. The running power consumption of the on-duty MCU is only 1-2% of that of the main MCU, so that the power consumption of the system is greatly reduced.
Description
technical field [0001] The application relates to the technical field of ultrasonic meters, in particular to a household three-meter low-power ultrasonic metering chip and a low-power control method. Background technique [0002] At present, a large number of household three-meters still use mechanical watches. Mechanical watches have disadvantages such as low measurement accuracy, large flow resistance, easy wear, and inconvenient Internet remote transmission. With the advancement of the smart city process, the upgrading of household three-meters is imminent. [0003] The household three-meter based on the principle of ultrasonic measurement has the advantages of small flow resistance, high precision, full electronics, intelligence, and easy remote transmission, and is the development direction of the household three-meter. In recent years, ultrasonic heat meters have been widely used, ultrasonic water meters have been widely used, and ultrasonic gas meters have begun to be...
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IPC IPC(8): G01F1/66G01F15/00
CPCG01F1/662G01F15/00
Inventor 郝振刚马宝甫单来成宋蓉赵美美
Owner 力创科技股份有限公司