An energy meter

Abstract

The utility model provides an energy meter, including a single-chip microcomputer and a power supply, and also including a plurality of analog switch chips connected to the single-chip microcomputer, each of the analog switch chips, each of the analog switch chips is provided with eight sampling circuits, the single-chip microcomputer is provided with a chip selection polling circuit, the chip selection polling circuit is provided with a plurality of connection nodes, and each of the analog switch chips is connected to one of the connection nodes. In the above energy meter, each analog switch chip can measure the energy of eight points simultaneously through eight sampling circuits, and through the chip selection polling circuit of the single-chip microcomputer, the data of the eight sampling circuits on each analog switch chip can be accessed separately and sequentially, thereby reducing the functional parameter requirements of the single-chip microcomputer and improving the performance.

Description

Technical Field

[0001] The utility model relates to the technical field of energy detection equipment, in particular to an energy meter. Background Art

[0002] Energy meters are used to measure the UV energy of different light sources, especially for printing machines. Ensure that the printing and drying process achieves ideal quality control. The energy meter can measure the spectrum range of 250-410 nanometers, and the best sensing peak spectrum output is 330 nanometers. When the exposure cycle is cycled, the relative value will be calculated. Due to the irregular radiation distribution of the light source, different manufacturers have different structural designs.

[0003] The existing energy meters are single-point energy meters that can only measure the energy at one point and cannot measure energy data at multiple points at the same time. Utility Model Content

[0004] The utility model aims to provide an energy meter to solve the problem that the existing energy meter can only measure the energy of one point.

[0005] The utility model provides an energy meter, comprising a single-chip microcomputer and a power supply, and also comprising a plurality of analog switch chips connected to the single-chip microcomputer, each of the analog switch chips being provided with eight sampling circuits, the single-chip microcomputer being provided with a chip select polling circuit, the chip select polling circuit being provided with a plurality of connection nodes, and each of the analog switch chips being connected to one of the connection nodes.

[0006] In the above energy meter, each analog switch chip can measure the energy of eight points simultaneously through eight sampling circuits, and access the data of the eight sampling circuits on each analog switch chip separately and sequentially through the chip select polling circuit of the single-chip microcomputer, thereby reducing the functional parameter requirements of the single-chip microcomputer and improving performance.

[0007] Furthermore, the model of the analog switch chip is HC4051PW.

[0008] Furthermore, the model of the single chip microcomputer is STM32L431RCT6.

[0009] Furthermore, it also includes a switch connected to the single chip microcomputer.

[0010] Furthermore, the single chip microcomputer is provided with a plurality of ground terminals.

[0011] Furthermore, the operating voltage of the analog switch chip is 5V. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1It is a schematic diagram of the structure of the analog switch chip in the energy meter in the first embodiment of the utility model;

[0013] Figure 2 It is a schematic diagram of the structure of the single chip microcomputer in the second embodiment of the utility model.

[0014] The following specific implementation manner will further illustrate the present utility model in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0015] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively with reference to the relevant drawings. Several embodiments of the utility model are given in the drawings. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0016] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0017] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0018] See also Figure 1 and Figure 2 The utility model provides an energy meter, including a single-chip microcomputer and a power supply, and also includes a plurality of analog switch chips connected to the single-chip microcomputer, each of the analog switch chips is provided with eight sampling circuits, the single-chip microcomputer is provided with a chip select polling circuit, the chip select polling circuit is provided with a plurality of connection nodes, and each of the analog switch chips is connected to one of the connection nodes.

[0019] In the above energy meter, each analog switch chip can measure the energy of eight points simultaneously through eight sampling circuits, and access the data of the eight sampling circuits on each analog switch chip separately and sequentially through the chip select polling circuit of the single-chip microcomputer, thereby reducing the functional parameter requirements of the single-chip microcomputer and improving performance.

[0020] Specifically, four HC4051PW analog switch chips are connected to the connection nodes M_A, M_B, and M_C in the chip select polling circuit in the microcontroller, and are also connected to Figure 2 In PC7, PC8, and PC9 of the single-chip microcomputer, M_A is connected to PC9, M_B is connected to PC8, and M_C is connected to PC7. The eight-way data on each chip is accessed separately and sequentially, which reduces the functional parameter requirements of the main chip and improves performance.

[0021] In one embodiment of the present invention, the model of the analog switch chip is HC4051PW.

[0022] In one embodiment of the present invention, the model of the single chip microcomputer is STM32L431RCT6.

[0023] In one embodiment of the present invention, a switch S301 connected to the single chip microcomputer is further included to control the switch of the single chip microcomputer.

[0024] In one embodiment of the utility model, the single chip microcomputer is provided with a plurality of ground terminals to perform leakage protection on the single chip microcomputer.

[0025] In one embodiment of the present invention, the operating voltage of the analog switch chip is 5V.

[0026] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An energy meter, comprising a single chip microcomputer and a power supply, characterized in that: It also includes multiple analog switch chips connected to the single-chip microcomputer, each of the analog switch chips is provided with eight sampling circuits, the single-chip microcomputer is provided with a chip select polling circuit, the chip select polling circuit is provided with multiple connection nodes, and each of the analog switch chips is connected to one of the connection nodes.

2. The energy meter according to claim 1, characterized in that: The model of the analog switch chip is HC4051PW.

3. The energy meter according to claim 1, characterized in that: The model of the single chip microcomputer is STM32L431RCT6.

4. The energy meter according to claim 1, characterized in that: Also included is a switch connected to the single chip microcomputer.

5. The energy meter according to claim 1, characterized in that: The single chip microcomputer is provided with a plurality of ground terminals.

6. The energy meter according to claim 1, characterized in that: The operating voltage of the analog switch chip is 5V.

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