WO2022057953A1 - Circuit for improving clock accuracy, and clock - Google Patents

Circuit for improving clock accuracy, and clock Download PDF

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Publication number
WO2022057953A1
WO2022057953A1 PCT/CN2021/128611 CN2021128611W WO2022057953A1 WO 2022057953 A1 WO2022057953 A1 WO 2022057953A1 CN 2021128611 W CN2021128611 W CN 2021128611W WO 2022057953 A1 WO2022057953 A1 WO 2022057953A1
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Prior art keywords
clock
mcu controller
accuracy
circuit
humidity
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PCT/CN2021/128611
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French (fr)
Chinese (zh)
Inventor
杜树帅
薛振永
李川
郭权
吴莉莉
连新凯
李勇
陈晔
赵薇
张永红
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河南许继仪表有限公司
许继集团有限公司
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Publication of WO2022057953A1 publication Critical patent/WO2022057953A1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00—Measuring or testing not otherwise provided for
    • G01D21/02—Measuring two or more variables by means not covered by a single other subclass
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F10/00—Apparatus for measuring unknown time intervals by electric means

Definitions

  • the present invention relates to the technical field of clocks, in particular to a circuit and a clock for improving clock precision.
  • the clock circuit In the field of intelligent power consumption, the clock circuit is widely used as a common circuit. In smart meters, concentrators and other products, the clock circuit, as the basis of product measurement, directly determines the accuracy of product measurement and the stability of product operation. In the prior art, a stable and high-precision clock circuit is lacking.
  • the commonly used clock circuits mainly have the following three schemes: (1) using MCU without clock function combined with external clock chip; (2) using MCU with clock function; (3) using MCU chip with clock function combined with external clock clock chip.
  • the clock accuracy of the first two schemes is not high, and it is difficult to improve the accuracy of the clock circuit, while the third scheme has improved clock accuracy compared with the first two schemes, but connecting an external clock chip will increase the cost, while reaching less than higher clock accuracy, and stability has not been improved.
  • the accuracy of the clock circuit is greatly affected by the external temperature, humidity, etc., which affects the accuracy and stability of the product.
  • the purpose of the embodiments of the present invention is to provide a circuit and a clock for improving clock accuracy, the clock output has higher accuracy, higher stability, higher product measurement accuracy, and lower cost.
  • an embodiment of the present invention provides a circuit for improving clock accuracy, including an MCU controller, a temperature sensor, and a humidity sensor.
  • the output end of the temperature sensor is connected to the MCU controller.
  • the output end of the humidity sensor is connected to the MCU controller.
  • the MCU controller has a clock function.
  • the clock accuracy is corrected.
  • an embodiment of the present invention further provides a clock using a circuit for improving clock accuracy, the clock including a housing, a display, a power supply circuit, and the circuit for improving clock accuracy as described in the first aspect; an MCU controller , temperature sensor, humidity sensor and power circuit are all arranged in the casing.
  • the display is arranged on the casing and is connected to the MCU controller.
  • the output end of the temperature sensor is connected to the MCU controller.
  • the output end of the humidity sensor is connected to the MCU controller.
  • the MCU controller has a clock function.
  • the MCU controller accepts the data of the temperature sensor and the humidity sensor, and corrects the clock precision.
  • the power supply circuit provides working power for the MCU controller, the temperature sensor, the humidity sensor and the display.
  • an embodiment of the present invention provides a first possible implementation manner of the second aspect, wherein the display is provided with a time scale, a temperature scale, and a humidity scale.
  • FIG. 1 is a schematic structural diagram of a circuit for improving clock accuracy according to the present invention
  • FIG. 2 is a schematic structural diagram of a clock to which a circuit for improving clock precision is applied according to the present invention.
  • a first embodiment of the present invention provides a circuit for improving clock accuracy, including an MCU controller, a temperature sensor and a humidity sensor.
  • the output end of the temperature sensor is connected to the MCU controller.
  • the output end of the humidity sensor is connected to the MCU controller.
  • the MCU controller has a clock function.
  • the clock accuracy is corrected.
  • a second embodiment of the present invention provides a clock using the circuit described in the first embodiment, including a housing, a display, an MCU controller, a temperature sensor, a humidity sensor, power circuit.
  • the display is arranged on the casing and is connected to the MCU controller.
  • the output end of the temperature sensor is connected to the MCU controller.
  • the output end of the humidity sensor is connected to the MCU controller.
  • the MCU controller has a clock function.
  • the MCU controller receives the data of the temperature sensor and the humidity sensor, and corrects the clock accuracy.
  • the power supply circuit provides working power for the MCU controller, the temperature sensor, the humidity sensor and the display.
  • an embodiment of the present invention provides a first possible implementation manner of the second aspect, wherein the display is provided with a time scale, a temperature scale, and a humidity scale.
  • the embodiment of the present invention aims to protect a circuit and a clock for improving clock accuracy, and has the following effects:
  • the invention measures the precise external temperature and humidity through temperature and humidity sensors, and transmits the measured data to the MCU, and adopts the MCU with clock function combined with the external temperature and humidity sensors to achieve higher clock accuracy, higher stability, and more accurate product measurement.
  • the precision is high, the clock precision can reach more than 0.25s/d, and the cost is reduced.

Abstract

Disclosed are a circuit for improving clock accuracy and a clock. The circuit comprises an MCU controller, a temperature sensor, and a humidity sensor. An output end of the temperature sensor is connected to the MCU controller. An output end of the humidity sensor is connected to the MCU controller. The MCU controller has a clock function. Calculation is performed according to currently received temperature data and humidity data, as well as preset temperature data, humidity data, and an error curve so as to correct the clock accuracy. A clock using the present circuit has higher output accuracy, higher stability, higher product metering accuracy, and reduced costs.

Description

一种提高时钟精度的电路及时钟A circuit and clock for improving clock accuracy 技术领域technical field
本发明涉及时钟技术领域，特别涉及一种提高时钟精度的电路及时钟。The present invention relates to the technical field of clocks, in particular to a circuit and a clock for improving clock precision.
背景技术Background technique
在智能用电领域，时钟电路作为一个常用电路，其应用非常广泛。在智能电表、集中器等产品中，时钟电路作为产品计量的基础，直接决定了产品计量的精度及产品运行的稳定性。现有技术中，缺少稳定高精度的时钟电路。常用的时钟电路主要有以下三种方案：(1)采用不带时钟功能的MCU结合外置时钟芯片；(2)采用带时钟功能的MCU；(3)采用带时钟功能的MCU芯片结合外置时钟芯片。前两种方案的时钟精度不高,且很难提高时钟电路的精度，而第三种方案相对前两种方案，时钟精度有所提高，但接外置时钟芯片会增加较大成本，同时达不到更高的时钟精度，且稳定性也未得到提高。上述三种方案中，时钟电路精度受到外界温度、湿度等影响变动较大，从而影响产品的精确度和稳定性。In the field of intelligent power consumption, the clock circuit is widely used as a common circuit. In smart meters, concentrators and other products, the clock circuit, as the basis of product measurement, directly determines the accuracy of product measurement and the stability of product operation. In the prior art, a stable and high-precision clock circuit is lacking. The commonly used clock circuits mainly have the following three schemes: (1) using MCU without clock function combined with external clock chip; (2) using MCU with clock function; (3) using MCU chip with clock function combined with external clock clock chip. The clock accuracy of the first two schemes is not high, and it is difficult to improve the accuracy of the clock circuit, while the third scheme has improved clock accuracy compared with the first two schemes, but connecting an external clock chip will increase the cost, while reaching less than higher clock accuracy, and stability has not been improved. In the above three schemes, the accuracy of the clock circuit is greatly affected by the external temperature, humidity, etc., which affects the accuracy and stability of the product.
发明内容SUMMARY OF THE INVENTION
有鉴于此，本发明实施例的目的在于提供一种提高时钟精度的电路及时钟，时钟输出的精度更高，稳定性更高，产品计量的精度较高，且降低了成本。In view of this, the purpose of the embodiments of the present invention is to provide a circuit and a clock for improving clock accuracy, the clock output has higher accuracy, higher stability, higher product measurement accuracy, and lower cost.
第一方面，本发明实施例提供了一种提高时钟精度的电路，包括MCU控制器、温度传感器和湿度传感器。In a first aspect, an embodiment of the present invention provides a circuit for improving clock accuracy, including an MCU controller, a temperature sensor, and a humidity sensor.
所述温度传感器的输出端连接所述MCU控制器。The output end of the temperature sensor is connected to the MCU controller.
所述湿度传感器的输出端连接所述MCU控制器。The output end of the humidity sensor is connected to the MCU controller.
所述MCU控制器带时钟功能。The MCU controller has a clock function.
根据当前接受到的温度数据、湿度数据以及预设的温度数据、湿度数据与误差曲线进行计算，对时钟精度进行修正。According to the currently received temperature data, humidity data and preset temperature data, humidity data and error curve, the clock accuracy is corrected.
第二方面，本发明实施例还提供了一种应用提高时钟精度的电路的时钟，所述时钟包括壳体、显示器、电源电路和如第一方面所述的提高时钟精度的电路；MCU控制器、温度传感器、湿度传感器和电源电路均设置在壳体内。In a second aspect, an embodiment of the present invention further provides a clock using a circuit for improving clock accuracy, the clock including a housing, a display, a power supply circuit, and the circuit for improving clock accuracy as described in the first aspect; an MCU controller , temperature sensor, humidity sensor and power circuit are all arranged in the casing.
所述显示器设置在所述壳体上，连接所述MCU控制器。The display is arranged on the casing and is connected to the MCU controller.
所述温度传感器的输出端连接所述MCU控制器。The output end of the temperature sensor is connected to the MCU controller.
所述湿度传感器的输出端连接所述MCU控制器。The output end of the humidity sensor is connected to the MCU controller.
所述MCU控制器带时钟功能。The MCU controller has a clock function.
所述MCU控制器接受所述温度传感器和所述湿度传感器的数据，对时钟精度进行修正。The MCU controller accepts the data of the temperature sensor and the humidity sensor, and corrects the clock precision.
所述电源电路为MCU控制器、温度传感器、湿度传感器、显示器提供工作电源。The power supply circuit provides working power for the MCU controller, the temperature sensor, the humidity sensor and the display.
结合第二方面，本发明实施例提供了第二方面的第一种可能的实施方式，其中，所述显示器上设有时间刻度、温度刻度和湿度刻度。In conjunction with the second aspect, an embodiment of the present invention provides a first possible implementation manner of the second aspect, wherein the display is provided with a time scale, a temperature scale, and a humidity scale.
本发明实施例的有益效果是：The beneficial effects of the embodiments of the present invention are:
采用带时钟功能的MCU结合外置温、湿度传感器，实现更高的时钟精度，稳定性更高，产品计量的精度较高，且降低了成本。Using MCU with clock function combined with external temperature and humidity sensors to achieve higher clock accuracy, higher stability, higher product measurement accuracy, and lower costs.
附图说明Description of drawings
为了更清楚地说明本发明实施例的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，应当理解，以下附图仅示出了本发明的某些实施例，因此不应被看作是对范围的限定，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他相关的附图。In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings required in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and therefore do not It should be regarded as a limitation of the scope, and for those of ordinary skill in the art, other related drawings can also be obtained according to these drawings without any creative effort.
下面结合附图和具体实施方式对本发明的提高时钟精度的电路及时 钟作进一步的详细描述。The circuit and the clock for improving the clock precision of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
图1为本发明提高时钟精度的电路的结构示意图；1 is a schematic structural diagram of a circuit for improving clock accuracy according to the present invention;
图2为本发明应用提高时钟精度的电路的时钟的结构示意图。FIG. 2 is a schematic structural diagram of a clock to which a circuit for improving clock precision is applied according to the present invention.
具体实施方式detailed description
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。通常在此处附图中描述和示出的本发明实施例的组件能够以各种不同的配置来布置和设计。In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the drawings herein can be arranged and designed in a variety of different configurations.
下面结合附图，对本发明的一些实施方式作详细说明。在不冲突的情况下，下述的实施例及实施例中的特征可以相互组合。Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below and features in the embodiments may be combined with each other without conflict.
请参照图1，本发明的第一个实施例提供一种提高时钟精度的电路，包括MCU控制器、温度传感器和湿度传感器。Referring to FIG. 1 , a first embodiment of the present invention provides a circuit for improving clock accuracy, including an MCU controller, a temperature sensor and a humidity sensor.
所述温度传感器的输出端连接所述MCU控制器。The output end of the temperature sensor is connected to the MCU controller.
所述湿度传感器的输出端连接所述MCU控制器。The output end of the humidity sensor is connected to the MCU controller.
所述MCU控制器带时钟功能。The MCU controller has a clock function.
根据当前接受到的温度数据、湿度数据以及预设的温度数据、湿度数据与误差曲线进行计算，对时钟精度进行修正。According to the currently received temperature data, humidity data and preset temperature data, humidity data and error curve, the clock accuracy is corrected.
请参照图2，本发明的第二个实施例提供一种应用如第一个实施例所述电路的时钟，包括壳体、显示器和设置在壳体内的MCU控制器、温度传感器、湿度传感器、电源电路。Referring to FIG. 2, a second embodiment of the present invention provides a clock using the circuit described in the first embodiment, including a housing, a display, an MCU controller, a temperature sensor, a humidity sensor, power circuit.
所述显示器设置在所述壳体上，连接所述MCU控制器。The display is arranged on the casing and is connected to the MCU controller.
所述温度传感器的输出端连接所述MCU控制器。The output end of the temperature sensor is connected to the MCU controller.
所述湿度传感器的输出端连接所述MCU控制器。The output end of the humidity sensor is connected to the MCU controller.
所述MCU控制器带时钟功能。The MCU controller has a clock function.
所述MCU控制器接受所述温度传感器和所述湿度传感器的数据，对时 钟精度进行修正。The MCU controller receives the data of the temperature sensor and the humidity sensor, and corrects the clock accuracy.
所述电源电路为MCU控制器、温度传感器、湿度传感器、显示器提供工作电源。The power supply circuit provides working power for the MCU controller, the temperature sensor, the humidity sensor and the display.
结合第二方面，本发明实施例提供了第二方面的第一种可能的实施方式，其中，所述显示器上设有时间刻度、温度刻度和湿度刻度。In conjunction with the second aspect, an embodiment of the present invention provides a first possible implementation manner of the second aspect, wherein the display is provided with a time scale, a temperature scale, and a humidity scale.
本发明实施例旨在保护一种提高时钟精度的电路及时钟，具备如下效果：The embodiment of the present invention aims to protect a circuit and a clock for improving clock accuracy, and has the following effects:
本发明通过温、湿度传感器测量精准的外界温湿度，所测数据传送给MCU，采用带时钟功能的MCU结合外置温、湿度传感器，实现更高的时钟精度，稳定性更高，产品计量的精度较高，时钟精度可以达到0.25s/d以上，且降低了成本。The invention measures the precise external temperature and humidity through temperature and humidity sensors, and transmits the measured data to the MCU, and adopts the MCU with clock function combined with the external temperature and humidity sensors to achieve higher clock accuracy, higher stability, and more accurate product measurement. The precision is high, the clock precision can reach more than 0.25s/d, and the cost is reduced.
应当理解的是，本发明的上述具体实施方式仅仅用于示例性说明或解释本发明的原理，而不构成对本发明的限制。因此，在不偏离本发明的精神和范围的情况下所做的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。此外，本发明所附权利要求旨在涵盖落入所附权利要求范围和边界、或者这种范围和边界的等同形式内的全部变化和修改例。It should be understood that the above-mentioned specific embodiments of the present invention are only used to illustrate or explain the principle of the present invention, but not to limit the present invention. Therefore, any modifications, equivalent replacements, improvements, etc. made without departing from the spirit and scope of the present invention should be included within the protection scope of the present invention. Furthermore, the appended claims of this invention are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or the equivalents of such scope and boundaries.

Claims (3)

  1. 一种提高时钟精度的电路，其特征在于，包括MCU控制器、温度传感器和湿度传感器；A circuit for improving clock accuracy, characterized in that it includes an MCU controller, a temperature sensor and a humidity sensor;
    所述温度传感器的输出端连接所述MCU控制器；The output end of the temperature sensor is connected to the MCU controller;
    所述湿度传感器的输出端连接所述MCU控制器；The output end of the humidity sensor is connected to the MCU controller;
    所述MCU控制器带时钟功能；The MCU controller has a clock function;
    根据当前接受到的温度数据、湿度数据以及预设的温度数据、湿度数据与误差曲线进行计算，对时钟精度进行修正。According to the currently received temperature data, humidity data and preset temperature data, humidity data and error curve, the clock accuracy is corrected.
  2. 一种应用提高时钟精度的电路的时钟，其特征在于，所述时钟包括壳体、显示器、电源电路和如权利要求1所述的提高时钟精度的电路；MCU控制器、温度传感器、湿度传感器和电源电路均设置在壳体内；A clock using a circuit for improving clock accuracy, characterized in that the clock comprises a housing, a display, a power supply circuit and the circuit for improving clock accuracy as claimed in claim 1; an MCU controller, a temperature sensor, a humidity sensor and The power circuits are all arranged in the casing;
    所述显示器设置在所述壳体上，连接所述MCU控制器；The display is arranged on the casing and is connected to the MCU controller;
    所述温度传感器的输出端连接所述MCU控制器；The output end of the temperature sensor is connected to the MCU controller;
    所述湿度传感器的输出端连接所述MCU控制器；The output end of the humidity sensor is connected to the MCU controller;
    所述MCU控制器带时钟功能；The MCU controller has a clock function;
    所述MCU控制器接受所述温度传感器和所述湿度传感器的数据，对时钟精度进行修正；The MCU controller accepts the data of the temperature sensor and the humidity sensor, and corrects the clock accuracy;
    所述电源电路为MCU控制器、温度传感器、湿度传感器、显示器提供工作电源。The power supply circuit provides working power for the MCU controller, the temperature sensor, the humidity sensor and the display.
  3. 根据权利要求2所述的时钟，其特征在于，所述显示器上设有时间刻度、温度刻度和湿度刻度。The clock according to claim 2, wherein the display is provided with a time scale, a temperature scale and a humidity scale.
PCT/CN2021/128611 2020-09-18 2021-11-04 Circuit for improving clock accuracy, and clock WO2022057953A1 (en)

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