CN206489217U - A kind of Portable non-contact bluetooth electric power meter - Google Patents

Abstract

The utility model relates to a portable non-contact bluetooth electric energy metering device, which includes a collector and a mobile terminal. The collector is composed of a voltage metering device, a current metering device, a processor, a storage device, and a bluetooth transmission module. The transmission module, the D/A converter, the graphics card and the display, the voltage metering device and the current metering device are respectively arranged next to the power transmission cable of the electrical equipment, and the voltage signal and the current signal are respectively collected, and the signal transmission of the voltage metering device and the current metering device The output ends are respectively connected to the signal input ends of the processor, the processor is provided with a memory, and the output port on the memory is connected to the bluetooth module in the collector, the bluetooth module in the collector and the built-in bluetooth module of the mobile terminal establish a wireless connection through the bluetooth transmission protocol. Connection, the signal output end of the Bluetooth module built in the mobile terminal is connected to the signal input end of the graphics card through the D/A converter in the mobile terminal, and the signal output end of the graphics card is connected to the display.

Description

A portable non-contact bluetooth electric energy metering device

technical field

The utility model belongs to the field of information interaction equipment, in particular to a portable non-contact bluetooth electric energy metering device.

Background technique

With the improvement of people's living standards in modern society, the demand for lean factory management and electricity inspection, people want to obtain the power consumption of electrical equipment in a fast and convenient way. At present, for factories or households, the power consumption of the entire household is usually obtained through the power company for a period of time, and it is difficult to directly obtain the power consumption of each electrical device in real time. However, common metering devices (such as metering sockets) on the market require cumbersome installation and debugging, and need to communicate with computers through serial ports or USB, resulting in very inconvenient use. Therefore, there is a need for a portable, non-contact metering device with a wireless communication function, which is convenient for people to obtain power consumption information of equipment in real time and quickly.

Contents of the invention

The purpose of this utility model is to propose a portable non-contact bluetooth electric energy metering device for electric equipment in view of the deficiencies of the prior art.

The utility model solves its technical problem and realizes by taking the following technical solutions:

A portable non-contact Bluetooth electric energy metering device, including a collector and a mobile terminal, the circuit principle between the collector and the mobile terminal is shown in Figure 1, the collector is composed of a voltage metering device, a current metering device, a processor, a storage device, and The mobile terminal is composed of a Bluetooth transmission module. The mobile terminal is equipped with a Bluetooth transmission module, a D/A converter, a graphics card, and a display. The voltage metering device and the current metering device are respectively installed next to the power transmission cable of the electrical equipment to collect voltage signals and current signals respectively. The signal output ends of the voltage metering device and the current metering device are respectively connected to the signal input port of the processor, the processor is provided with a memory, the output port on the memory is connected to the bluetooth module in the collector, and the bluetooth module in the collector is connected to the mobile terminal The built-in Bluetooth module establishes a wireless connection through the Bluetooth transmission protocol. The signal output end of the built-in Bluetooth module of the mobile terminal is connected to the signal input end of the graphics card through the D/A converter in the mobile terminal, and the signal output end of the graphics card is connected to the display.

Furthermore, the voltage metering device is a non-contact voltage measuring sensor based on the principle of capacitive coupling.

Furthermore, the current metering device is a Hall current sensor.

Moreover, a clock module is also integrally installed on the processor.

Advantage and positive effect of the present utility model are:

The portable non-contact bluetooth electric energy metering device provided by the utility model can realize non-contact measurement and collection of electric equipment, and display the data at the same time, and can obtain data on the power consumption of electric equipment at the first time, through non-contact The practicality of voltage measurement sensor, Hall current sensor and Bluetooth realizes the wireless transmission of data while avoiding the limitation of the working space caused by too many interfaces and too long lines.

Description of drawings

Fig. 1 is the electric control principle block diagram of the present utility model;

Fig. 2 is a schematic diagram of the display energy consumption state of the mobile terminal in the present invention.

detailed description

The implementation of the utility model will be described in further detail below in conjunction with the accompanying drawings. The following examples are only descriptive, not restrictive, and cannot limit the protection scope of the utility model.

A portable non-contact Bluetooth electric energy metering device, including a collector and a mobile terminal, the circuit principle between the collector and the mobile terminal is shown in Figure 1, the collector is composed of a voltage metering device, a current metering device, a processor, a storage device, and The mobile terminal is composed of a bluetooth transmission module, a built-in bluetooth transmission module, a D/A converter, a graphics card and a display.

The voltage measurement device is a non-contact voltage measurement sensor based on the principle of capacitive coupling. The sensor is used in a similar way to the magnetometer to measure the magnetic field. It does not require a direct electrical connection. Through capacitive coupling, the displacement current is used to measure the voltage on the surface of the object or in free space. Put the sensor electrode in the electric field, a coupling capacitance will be formed between the sensing electrode and the signal source, and a voltage divider circuit will be formed when the signal source passes through the coupling capacitance between the measurement system and the ground. When the coupling impedance is negligible compared with the system input impedance Without timing, the system is equivalent to a voltmeter with ideal characteristics, which can effectively measure voltage signals, and has been widely used in the field of circuit measurement.

The current measuring device is a Hall current sensor, based on the magnetic balance Hall principle, according to the Hall effect principle, the current Ic is passed through the control current terminal of the Hall element, and the magnetic field strength is applied in the normal direction of the Hall element plane If it is the magnetic field of B, then in the direction perpendicular to the current and the magnetic field (that is, between the Hall output terminals), a potential VH will be generated, which is called the Hall potential, and its magnitude is proportional to the control current I. and the product of the magnetic field strength B.

The voltage metering device and the current metering device are respectively arranged next to the power transmission cables of the electrical equipment, and respectively collect voltage signals and current signals. There is a memory on the device, and the output port on the memory is connected to the Bluetooth module in the collector. The Bluetooth module in the collector and the built-in Bluetooth module of the mobile terminal establish a wireless connection through the Bluetooth transmission protocol. The signal input end of the graphics card is connected through the D/A converter in the mobile terminal, and the signal output end of the graphics card is connected to the monitor.

A clock module is also integrated and installed on the processor, and a power module is arranged in the collector for supplying power to the processor.

The working principle of the utility model is:

The comparison data is set in the collector in advance, and the electrical signal data collected by the voltage metering device and the current metering device are compared with the comparison data, and the difference is obtained as the power consumption of the electrical equipment. The design of the mobile terminal is currently The existing technology has been applied in many smart devices, and the convenience and stability of Bluetooth transmission can guarantee the data. This technology can also be applied when the DC power supply outputs power to the electrical equipment, the comparison data is set as the power storage capacity of the DC power supply, and the battery life of the electrical equipment is obtained by collecting the power consumption of the electrical equipment and calculating the difference Time, the display on the mobile terminal is time-limited, as shown in Figure 2.

Although the embodiments and drawings of the utility model are disclosed for the purpose of illustration, those skilled in the art can understand that various replacements, changes and modifications can be made without departing from the spirit and scope of the utility model and the appended claims. It is possible, therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims (4)

1. a kind of Portable non-contact bluetooth electric power meter, it is characterised in that：Including collector and mobile terminal, collector It is made up of voltage measurement device, electric current metering device, processor, storage device and Bluetooth communication modules, built in mobile terminal There are Bluetooth communication modules, D/A converter, video card and display, voltage measurement device, electric current metering device are separately positioned on use Side on the power transmission cable of electric equipment, respectively collection voltages signal and current signal, voltage measurement device, electric current metering device Signal outflow end is connected with the signal input part of processor respectively, and output port on memory, memory is provided with processor Connect the bluetooth module in the bluetooth module in collector, collector and the bluetooth module built in mobile terminal passes through Bluetooth transmission Agreement sets up wireless connection, and the signal outflow end of the bluetooth module built in mobile terminal passes through the D/A converter in mobile terminal Connect the signal input part of video card, the signal output part connection display of video card.

2. Portable non-contact bluetooth electric power meter according to claim 1, it is characterised in that：The voltage measurement Device is the non-contact voltage measurement sensor based on Capacitance Coupled principle.

3. Portable non-contact bluetooth electric power meter according to claim 1, it is characterised in that：The electric current metering Device is Hall current sensor.

4. Portable non-contact bluetooth electric power meter according to claim 1, it is characterised in that：In the processor On go back integrated installation and have clock module.