CN216283641U

CN216283641U - Power consumption tracking system and device

Info

Publication number: CN216283641U
Application number: CN202121506352.6U
Authority: CN
Inventors: 林松益; 郑良鑫
Original assignee: Guangzhou Laienshi Technology Co ltd
Current assignee: Guangzhou Laienshi Technology Co ltd
Priority date: 2021-07-02
Filing date: 2021-07-02
Publication date: 2022-04-12
Anticipated expiration: 2031-07-02

Abstract

The utility model discloses a power consumption tracking system and a device, wherein the system comprises a voltage measuring module, a current monitoring module and a processor module, and is characterized by also comprising: the system comprises a line temperature monitoring module, a power tracking module and a circuit breaking protection module; the line temperature monitoring module is used for monitoring the temperature of the electric equipment line; the power tracking module is used for obtaining the power of an electric appliance according to the voltage measured by the voltage measuring module and the current measured by the current monitoring module; the processor module controls the circuit breaking protection module to break a circuit according to the temperature of the electric equipment circuit and/or the power of an electric appliance; the utility model realizes the omnibearing monitoring of the electric equipment line through the line temperature monitoring module and the power tracking module, has wider monitoring coverage area, simple structure and easy maintenance, and can be widely applied to the technical field of electrical fire monitoring.

Description

Power consumption tracking system and device

Technical Field

The utility model relates to the technical field of integrated electrical fire monitoring, in particular to a power consumption tracking system and a power consumption tracking device.

Background

Electrical fires generally refer to thermal energy released due to the failure of electrical lines, consumers, appliances and power supply and distribution equipment: energy released such as high temperature, arcing, electrical sparks, and non-failure; such as hot surfaces of electric heating appliances, fires resulting from ignition of a body or other combustible material under burning conditions also include those caused by lightning and static electricity. The electrical fire mainly includes leakage fire, short circuit fire, overload fire and contact resistance over-large fire.

The electric fire disaster has certain particularity, and the invisible and untouched information is converted into the information which can be received by a sensing organ by means of modern scientific and technological means, so that an electric fire disaster monitoring system or a fire disaster alarm system can be produced at present. The electric fire monitoring system converts the symptoms expressed in the early stage of the electric fire into recognizable information through technical means so as to achieve the purpose of monitoring the electric fire and send alarm information before the electric fire occurs.

However, the electrical fire monitoring system or the fire alarm system still has some defects and shortcomings, such as: the judgment basis is single, when the circuit is abnormal, the adopted protective measures such as circuit breaking and the like may have certain hysteresis, and the factors which are monitored by the existing electrical fire monitoring system and easily cause fire are single and incomplete.

SUMMERY OF THE UTILITY MODEL

To solve one of the above technical problems, the present invention aims to: provided are a power consumption tracking system having a linear temperature monitoring function and a simple structure and easy to operate, and a power consumption tracking system device equipped with the system.

The technical scheme adopted by the utility model is as follows:

in a first aspect, the utility model provides an electricity consumption power tracking system, which comprises a voltage measurement module, a current monitoring module, a processor module, a line temperature monitoring module, a power tracking module and a circuit breaking protection module;

the line temperature monitoring module is used for monitoring the temperature of the electric equipment line; the power tracking module is used for obtaining the power of an electric appliance according to the voltage measured by the voltage measuring module and the current measured by the current monitoring module;

the processor module controls the circuit breaking protection module to break a circuit according to the temperature of the electric equipment circuit and/or the power of an electric appliance;

the output end of the linear temperature monitoring module is connected to the input end of the processor module, the input end of the power tracking module is connected to the output end of the voltage measuring module and the output end of the current monitoring module, and the output end of the power tracking module is connected to the input end of the processor module; the input end of the open circuit protection module is connected to the output end of the processor module.

In some optional embodiments, the system further comprises a power factor compensation module, wherein the power factor compensation module is used for compensating the power factor of the electrical appliance; the input end of the power factor compensation module is connected to the output end of the processor module.

In some optional embodiments, the system further comprises a residual current monitoring module for monitoring a residual current in the power line, wherein an output of the residual current monitoring module is connected to an input of the processor module.

In some optional embodiments, the system further includes a zero sequence current transformer, the residual current monitoring module is a current sampling and amplifying circuit, and an input end of the current sampling and amplifying circuit is connected to a coil of the zero sequence current transformer.

In some optional embodiments, the system further comprises a communication module and an interactive display module, the communication module being connected to the processor module; the interactive display module is connected to the processor module.

In a second aspect, the present invention provides an electric power tracking apparatus, which includes a housing, a fixing plate, and a control panel, wherein the housing is provided with any one of the electric power tracking systems of the first aspect.

In some optional embodiments, the surface of the fixing plate is provided with a guide rail groove for fixing in combination with the snap.

The utility model has the beneficial effects that: according to the technical scheme, the real-time temperature of an electric wire line in the electric equipment line is monitored through the line temperature monitoring module, the collected temperature signal is transmitted to the processor module, and the actual power of an electric appliance in the line is monitored through the power tracking module; the processor triggers the control instruction according to the real-time temperature and the actual power, controls the open circuit protection module to disconnect the circuit, and avoids causing fire of the electric appliance.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a block diagram of an electric power tracking system according to an embodiment of the present invention;

fig. 2 is a schematic diagram illustrating a connection relationship between a voltage measuring module, a current monitoring module and a residual current monitoring module according to an embodiment of the present invention;

FIG. 3 is a schematic circuit diagram of a power factor compensation module according to an embodiment of the present invention;

fig. 4 is a schematic installation diagram of an electric power tracking apparatus according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length," "upper," "lower," "front," "rear," "left," "right," "top," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In a first aspect, as shown in fig. 1, the present invention provides an electricity power tracking system, which includes a voltage measurement module, a current monitoring module, a processor module, a power tracking module, and a trip protection module.

The input end of the voltage measurement module is used for accessing three-phase electricity of the electric equipment, and the output end of the voltage measurement module is connected to the input end of the processor module; the input end of the current monitoring module is also connected with the three-phase electricity of the electric equipment, and the output end of the current monitoring module is connected to the input end of the processor module; the line temperature monitoring module is a corresponding sensor or a sensor probe, the connecting sensor or the sensor probe is connected to a circuit of the electric equipment, and the output end of the line temperature monitoring module is connected to the input end of the processor; the input end of the residual current monitoring module is connected to the detection coil, and the detection coil is connected to the line of the electric equipment. The input end of the power tracking module is connected to the output end of the voltage measuring module and the output end of the current monitoring module, and the output end of the power tracking module is connected to the input end of the processor module; the input end of the open circuit protection module is connected to the output end of the processor module.

Specifically, the voltage measurement module is mainly used for sampling the electricity utilization voltage in the line of the electric equipment, transmitting a voltage signal to the processor module, and judging whether the voltage of the currently sampled line is abnormal by the processor module; the current monitoring module is mainly used for sampling current in a line of the electric equipment, transmitting a current signal of the line to the processor module, and judging whether the current of the currently sampled line is abnormal by the processor module, for example, the current is overlarge due to the fact that the load is too much; the line temperature monitoring module is mainly used for collecting the temperature of the power utilization line through a sensor or a sensor probe arranged in the power utilization equipment line, converting the temperature into a corresponding electric signal and transmitting the electric signal to the processor module. The power tracking module is used for determining the actual power of all the electric appliances in the current line according to the acquired voltage and current; in the embodiment, the power tracking module adopts a CS5463 chip, voltage is sent to VIN + and VIN-of a power calculation unit chip CS5463, voltage at two ends of a current sampling resistor is sent to IIN + and IIN-of the CS5463, power and power factor calculation is carried out on the power calculation unit circuit core chip CS5463 through the sampled voltage and current, and a calculation result is sent to the processor module through SDI pins and SDO pins. The processor module is mainly used for judging whether to trigger a control instruction for disconnecting the circuit according to a preset circuit temperature threshold and a circuit maximum power threshold; it can be understood that the condition of triggering the control instruction of the disconnection circuit can be that the temperature of the electric appliance line exceeds the circuit temperature threshold value and the actual power of the electric appliance exceeds the maximum power threshold value of the line; the temperature can exceed the circuit temperature threshold or the actual power of the electric appliance exceeds the maximum power threshold of the circuit, and any one of the two conditions can be met. In the embodiment, the open circuit protection module is realized by adopting a relay and is used for controlling the power-on or power-off of an electric appliance circuit according to the control instruction of the processor module.

In addition, as shown in fig. 2, the voltage measuring module is a voltage sampling amplifying circuit, and the current monitoring module is a current sampling amplifying circuit; the voltage sampling and amplifying circuit is used for sampling voltages in a three-phase circuit of the electric equipment, amplifying the sampled signals to obtain voltage signals and transmitting the voltage signals to the processor module; the current sampling and amplifying circuit is used for sampling the current in the three-phase circuit of the electric equipment, amplifying the sampled signal to obtain a current signal and transmitting the current signal to the processor module.

In some possible embodiments, the power usage tracking system of an embodiment may further include a power factor compensation module; the input of the power factor compensation module is connected to the output of the processor module.

Specifically, as shown in fig. 3, the power factor compensation module is connected in parallel between the live line and the neutral line, and is mainly composed of a capacitor and a control circuit thereof, and is used for compensating the power factor. In the embodiment, a compensation capacitor C334 and a bidirectional thyristor BT138-600E are connected between a live wire L and a zero wire N, the C334 and the bidirectional thyristor BT138-600E are connected in series, the conduction condition of the bidirectional thyristor BT138-600E depends on an optical coupler U1 MC3036, when an output signal RELAY1 from a microprocessor is in a low level, an optical coupler U1 is conducted, namely a pin 6 to a pin 4 of a U1 are conducted, the BT138-600E is triggered to be conducted, and a compensation capacitor is connected between the live wire L and the zero wire N in parallel, so that power factor compensation is carried out on a load.

In some possible embodiments, the embodiment system further comprises a residual current monitoring module;

specifically, the input end of the residual current monitoring module is connected to a detection coil, and the detection coil is connected to an electric device line. In the embodiment system, the residual current monitoring module is used for detecting the residual current in the electric equipment line through the detection coil, wherein the residual current refers to the sum of current vectors of all phases (including neutral lines) in the low-voltage distribution line and the current which is not zero. When an accident occurs at the electricity utilization side, the current flows to the ground from the charged body through a human body, so that the magnitude of a current I phase and the magnitude of a current I phase in an inlet wire and an outlet wire of a main circuit are unequal, and the instantaneous vector synthesis effective value of the current is called residual current and also called electric leakage; the embodiment transmits the detected residual current signal to the processor module, and the processor module judges whether the residual current exists in the current line or the residual current value is abnormal.

In some possible embodiments, the embodiment system further includes a zero sequence current transformer, and the current monitoring module is a current sampling and amplifying circuit, and an input end of the current sampling and amplifying circuit is connected to a coil of the zero sequence current transformer.

Specifically, as shown in fig. 2, when the three-phase circuit in the embodiment is asymmetric, the currents can be decomposed into positive sequence currents, negative sequence currents and zero sequence currents. The positive sequence refers to three-phase alternating current of a positive normal phase sequence (namely A, B, C three-phase space difference is 120 degrees, the phase sequence is a normal phase sequence), the negative sequence refers to three-phase sequence opposite to the normal phase sequence (three phases are still 120 degrees apart and are still balanced), and the zero sequence refers to A, B, C current which is decomposed into three phasors with the same size and phase. The zero sequence current transformer is sleeved on the three-core cable, and when three phases are unbalanced, zero sequence current is displayed outside because phasors are the same and strengthened. The zero sequence current transformer is a line fault monitor, generally only has an iron core and a secondary winding, in the embodiment, a primary three-core cable passes through an iron core window hole of the transformer, a secondary three-core cable is connected to a special relay through a lead, and then the output end of the relay is connected to a processor module. Under normal conditions, three-phase currents in the primary circuit are basically balanced, and the generated resultant magnetic flux is close to zero. No current is induced in the secondary winding of the transformer, and when a fault such as single-phase grounding occurs in the primary circuit, an unbalanced current (i.e., zero-sequence current) is generated in the primary circuit, and a small current is induced in the secondary winding to operate the relay, so that a signal is generated.

In some possible embodiments, the embodiment system further comprises a communication module and an interactive display module, the communication module being connected to the processor module; the interactive display module is connected to the processor module.

The communication module is used for enabling the processor module to generate line information after line information of various electric equipment is acquired according to a built-in program, the line information is sent to the mobile terminal equipment through a communication protocol supported by the communication module, the intelligent electricity utilization safety cloud platform big data service center accessed by the implementation system is used for calculating and analyzing, the original vacancy and electricity utilization historical records are combined, the mobile terminal equipment can display the condition of the current electric equipment line, when the electricity utilization line is abnormal, for example, the line is abnormally high in temperature, and the mobile terminal equipment can receive early warning alarm and reason analysis of the electricity utilization abnormality. The communication module of an embodiment includes at least one of: 4G communication chip, 5G communication chip, narrowband thing networking chip and wireless local area network module. The 4G communication chip and the 5G communication chip can realize a communication mode based on mobile data. The wireless local area network (WIFI) module belongs to an internet of things transmission layer, and has the functions of converting a serial port or TTL level into an embedded module which accords with a Wi-Fi wireless network communication standard, and a built-in wireless network protocol IEEE802.11b.g.n protocol stack and a TCP/IP protocol stack. The narrow-band Internet of things (NB-IOT) chip supports cellular data connection of low-power consumption equipment in a wide area network, the NB-IoT is constructed in the cellular network, only consumes about 180kHz bandwidth, and can be directly deployed in a GSM network, a UMTS network or an LTE network so as to reduce deployment cost and realize smooth upgrading. The communication module of the embodiment system can be in communication connection with the electricity safety management cloud platform or the mobile terminal by adopting various communication protocols or communication modes, so that the monitoring process is more convenient and visual.

In addition, the interactive display module in the embodiment system can visually display the current, the voltage, the line temperature and the residual current in the line of the current electric equipment.

In a second aspect, the present invention further provides an electrical fire monitoring and early warning device, which includes a housing, a fixing plate, and a control panel, wherein the housing is provided with the power consumption tracking system in the first aspect.

In some possible embodiments, as shown in fig. 4, the surface of the fixing plate is provided with a guide rail groove, the guide rail groove is used for being combined with the buckle for fixing, in the process of installation, the positioning buckle is firstly fixed at the same height as the early warning device, then the early warning device is obliquely pressed into the upper groove, the middle part of the positioning buckle is tapped into the lower groove, and the buckle is pushed upwards to the locking position. The electric fire monitoring and early warning device provided by the embodiment is easy to install, can be additionally installed under the condition of not influencing power supply, and does not interfere with the original circuit after being additionally installed.

In summary, compared with the prior art, the utility model has the following characteristics or advantages:

1. according to the technical scheme, abnormal conditions such as circuit leakage, overcurrent, overload, overvoltage, undervoltage, high temperature of the cable and the like can be accurately identified in time, and the system can give an alarm in various ways;

2. according to the technical scheme, the power utilization state can be recorded in real time, the power utilization data including the time and classification of each abnormal condition can be counted in real time, and a user can log in the platform to browse at any time;

3. according to the technical scheme, through calculation and analysis of the intelligent power utilization safety cloud platform big data service center and combination of the original vacancy and power utilization historical records, a user can receive reason analysis of power utilization abnormity.

In the description herein, references to the description of "one embodiment," "another embodiment," or "certain embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. An electricity power tracking system comprising a voltage measurement module, a current monitoring module, and a processor module, the system further comprising: the system comprises a line temperature monitoring module, a power tracking module and a circuit breaking protection module;

2. The power usage tracking system of claim 1, further comprising a power factor compensation module, an input of the power factor compensation module being coupled to an output of the processor module.

3. The power usage tracking system of claim 1, further comprising a residual current monitoring module, an output of the residual current monitoring module being coupled to an input of the processor module.

4. The power consumption tracking system according to claim 3, further comprising a zero sequence current transformer, wherein the residual current monitoring module is a current sampling and amplifying circuit, and an input end of the current sampling and amplifying circuit is connected to a coil of the zero sequence current transformer.

5. The electrical power usage tracking system of any one of claims 1-4, further comprising a communication module and an interactive display module, the communication module coupled to the processor module; the interactive display module is connected to the processor module.

6. An electricity consumption power tracking device comprising a housing, a fixing plate and a control panel, wherein the housing is internally provided with an electricity consumption power tracking system as claimed in any one of claims 1 to 5.

7. The electric power tracking device of claim 6, wherein the surface of the fixed plate is provided with a guide rail groove.