CN222014311U - Multifunctional electric power instrument - Google Patents
Multifunctional electric power instrument Download PDFInfo
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- CN222014311U CN222014311U CN202420267409.9U CN202420267409U CN222014311U CN 222014311 U CN222014311 U CN 222014311U CN 202420267409 U CN202420267409 U CN 202420267409U CN 222014311 U CN222014311 U CN 222014311U
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Abstract
本实用新型涉及一种多功能电力仪表，包括主控模块、采集电路和人机接口电路；采集电路包括计量芯片，计量芯片与主控模块电连接；人机交互电路包括用于切换电压、电流、电能三种检测模式的按键模块，按键模块与主控模块电连接，主控模块经数码管显示电路与显示屏电连接。通过采用上述技术方案，采用先进的计量芯片，具有体积小、组合简单、拓展方便、功能强、稳定性好等特点，显示屏仅采用四组数码管配合电压指示灯、电流指示灯和电能指示灯的切换，简单明了，节省成本，采用按键切换，即可一机多用，使用方便，采用无线通讯模块，其通信采用Modbus‑RTU协议，将电压、电流、电能等信息保存到存储器中，并上传至云端，方便通过外部设备自动记录。
The utility model relates to a multifunctional electric power meter, including a main control module, an acquisition circuit and a human-machine interface circuit; the acquisition circuit includes a metering chip, which is electrically connected to the main control module; the human-machine interaction circuit includes a key module for switching three detection modes of voltage, current and electric energy, the key module is electrically connected to the main control module, and the main control module is electrically connected to the display screen via a digital tube display circuit. By adopting the above technical solution and using advanced metering chips, it has the characteristics of small size, simple combination, convenient expansion, strong functions and good stability. The display screen only uses four groups of digital tubes to switch between voltage indicator lights, current indicator lights and electric energy indicator lights, which is simple and clear, saves costs, and uses key switching, so that one machine can be used for multiple purposes, which is convenient to use. A wireless communication module is used, and its communication adopts the Modbus‑RTU protocol to save information such as voltage, current, and electric energy into a memory and upload it to the cloud, which is convenient for automatic recording through external devices.
Description
Technical Field
The utility model relates to the technical field of meters, in particular to a multifunctional electric meter.
Background
At present, a power supply and distribution system generally needs to monitor parameters such as voltage, current, frequency and power of a power supply and distribution loop, and when the power supply and distribution system is currently tested, an instrument can only detect single data, for example, a voltmeter is used when voltage needs to be detected, an ammeter is used when current needs to be detected, a worker is very inconvenient when using a traditional pointer instrument with a single function to test, and the tested data is often inaccurate, so that the traditional pointer instrument with the single function cannot meet the current testing requirement, and the existing multifunctional electric instrument is high in cost.
Disclosure of utility model
In summary, in order to overcome the defects in the prior art, the utility model provides a multifunctional electric power instrument.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a multifunctional electric power instrument comprises a main control module, an acquisition circuit and a man-machine interface circuit; the acquisition circuit comprises a metering chip, and the metering chip is electrically connected with the main control module; the man-machine interaction circuit comprises a key module for switching three detection modes of voltage, current and electric energy, wherein the key module is electrically connected with the main control module, and the main control module is electrically connected with the display screen through the nixie tube display circuit.
The utility model further provides that: the main control module comprises a processor, a memory and a communication interface, the metering chip and the key module are respectively and electrically connected with the input end of the processor, the output end of the processor is respectively and electrically connected with the display screen and the memory, the communication interface is connected with the wireless communication module, and the wireless communication module adopts Modbus-RTU protocol.
The utility model further provides that: the main control module is a 32F103 singlechip.
The utility model further provides that: the metering chip is a V9302 chip.
The utility model further provides that: the display screen comprises four groups of nixie tubes which are distributed in an 8 shape, point position indicator lamps are arranged among the nixie tubes, and one side of each nixie tube is provided with a voltage indicator lamp, a current indicator lamp and an electric energy indicator lamp.
The utility model further provides that: the key module comprises a plurality of groups of parallel-arranged resistance-capacitance filter key circuits, each resistance-capacitance filter key circuit comprises a resistance-capacitance resistor and a function key connected with the resistance Rong Dianzu in series, and filter capacitors are connected in parallel on the function keys.
The utility model further provides that: the function keys consist of a setting key K1, an upper adjusting key K2, a lower adjusting key K3 and a return key K4.
Compared with the prior art, the utility model has the beneficial effects that: the display screen only adopts four groups of nixie tubes to match with the switching of the voltage indicator lamp, the current indicator lamp and the electric energy indicator lamp, is simple and clear, saves cost, adopts key switching, can be multipurpose, is convenient to use, adopts a wireless communication module, adopts Modbus-RTU protocol for communication, saves information such as voltage, current, electric energy and the like into a memory, uploads the information to the cloud, is convenient to automatically record through external equipment, and does not need manual recording.
The following describes specific embodiments of the present utility model with reference to the drawings and examples.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present utility model;
FIG. 2 is a circuit diagram of a key module according to an embodiment of the present utility model;
FIG. 3 is a circuit diagram of a nixie tube display according to an embodiment of the present utility model;
FIG. 4 is a partial acquisition circuit diagram of an embodiment of the present utility model;
FIG. 5 is a partial circuit diagram of a master control module according to an embodiment of the utility model;
reference numerals: 1. the system comprises a main control module, an acquisition circuit, a key module, a nixie tube display circuit, a display screen and a wireless communication module.
Detailed Description
The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment, which may not creatively contribute to the present utility model as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present utility model.
Referring to fig. 1-5, the embodiment discloses a multifunctional electric power instrument, which comprises a main control module 1, an acquisition circuit 2 and a man-machine interface circuit; the acquisition circuit 2 comprises a metering chip, and the metering chip is electrically connected with the main control module 1; the man-machine interaction circuit comprises a key module 3 for switching three detection modes of voltage, current and electric energy, wherein the key module 3 is electrically connected with the main control module 1, and the main control module 1 is electrically connected with the display screen 5 through the nixie tube display circuit 4.
The present embodiment further provides: the main control module 1 comprises a processor, a memory and a communication interface, the metering chip and the key module 3 are respectively and electrically connected with the input end of the processor, the output end of the processor is respectively and electrically connected with the display screen 5 and the memory, the communication interface is connected with the wireless communication module 6, and the wireless communication module 6 adopts a Modbus-RTU protocol.
The present embodiment further provides: the main control module 1 is a 32F103 singlechip.
The present embodiment further provides: the metering chip is a V9302 chip.
The present embodiment further provides: the display screen 5 comprises four groups of nixie tubes which are distributed in an 8 shape, point position indicator lamps are arranged among the nixie tubes, and one side of each nixie tube is provided with a voltage indicator lamp, a current indicator lamp and an electric energy indicator lamp.
The present embodiment further provides: the key module 3 comprises a plurality of groups of parallel-arranged resistance-capacitance filter key circuits, each resistance-capacitance filter key circuit comprises a resistance-capacitance resistor and a function key connected with the resistance Rong Dianzu in series, and filter capacitors are connected in parallel on the function keys.
The present embodiment further provides: the function keys consist of a setting key K1, an upper adjusting key K2, a lower adjusting key K3 and a return key K4.
The resistance value and the capacitance of each resistor in this embodiment can be adjusted according to the requirements, and the drawings are only exemplary references.
The term "between" is not intended to mean between not only orientations and positions, but also interactions between different parts.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. A multifunctional power meter, characterized in that: the system comprises a main control module, an acquisition circuit and a man-machine interface circuit; the acquisition circuit comprises a metering chip, and the metering chip is electrically connected with the main control module; the man-machine interface circuit comprises a key module for switching three detection modes of voltage, current and electric energy, wherein the key module is electrically connected with the main control module, and the main control module is electrically connected with the display screen through the nixie tube display circuit.
2. A multifunctional power meter according to claim 1, characterized in that: the main control module comprises a processor, a memory and a communication interface, the metering chip and the key module are respectively and electrically connected with the input end of the processor, the output end of the processor is respectively and electrically connected with the display screen and the memory, the communication interface is connected with the wireless communication module, and the wireless communication module adopts Modbus-RTU protocol.
3. A multifunctional power meter according to claim 1, characterized in that: the main control module is a 32F103 singlechip.
4. A multifunctional power meter according to claim 1, characterized in that: the metering chip is a V9302 chip.
5. A multifunctional power meter according to claim 1, characterized in that: the display screen comprises four groups of nixie tubes which are distributed in an 8 shape, point position indicator lamps are arranged among the nixie tubes, and one side of each nixie tube is provided with a voltage indicator lamp, a current indicator lamp and an electric energy indicator lamp.
6. A multifunctional power meter according to claim 1, characterized in that: the key module comprises a plurality of groups of parallel-arranged resistance-capacitance filter key circuits, each resistance-capacitance filter key circuit comprises a resistance-capacitance resistor and a function key connected with the resistance Rong Dianzu in series, and filter capacitors are connected in parallel on the function keys.
7. The utility meter of claim 6, wherein: the function keys consist of a setting key K1, an upper adjusting key K2, a lower adjusting key K3 and a return key K4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420267409.9U CN222014311U (en) | 2024-02-03 | 2024-02-03 | Multifunctional electric power instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420267409.9U CN222014311U (en) | 2024-02-03 | 2024-02-03 | Multifunctional electric power instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222014311U true CN222014311U (en) | 2024-11-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420267409.9U Active CN222014311U (en) | 2024-02-03 | 2024-02-03 | Multifunctional electric power instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222014311U (en) |
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2024
- 2024-02-03 CN CN202420267409.9U patent/CN222014311U/en active Active
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