CN113990716A - Internet of things breaker - Google Patents
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/04—Means for indicating condition of the switching device
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
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Abstract
The invention provides an Internet of things breaker, which comprises: the device comprises a position signal sensor, a detection module, a data processing module and an intelligent control module; a position signal sensor for emitting a position signal indicative of a position of the position signal sensor; the detection module is used for detecting the position signal and sending the position signal to the data processing module; the data processing module is used for determining whether the breaker of the Internet of things completes opening or closing according to the position signal; determining a control mode according to an externally input instruction; determining that the intelligent control module sends a switch control instruction according to the control mode; the intelligent control module is used for controlling the switch of the Internet of things breaker to be opened or closed according to the switch control instruction. The technical scheme provided by the embodiment of the invention can realize the accurate control of the opening and closing of the circuit breaker and the remote monitoring of the running state of the circuit breaker.
Description
Technical Field
The invention belongs to the technical field of Internet of things, and particularly relates to an Internet of things breaker.
Background
Circuit breakers are important protection devices in electrical power systems, with regard to circuit safety.
In the internet of things technology, operation and maintenance personnel need to monitor whether a circuit is safely operated in real time and select whether to start circuit protection according to real-time conditions. The existing internet-of-things circuit breaker comprises basic circuits such as a manual control switching-on and switching-off circuit and a current overload thermal tripping protection circuit, and the existing internet-of-things circuit breaker does not have the capability of monitoring the switching-on and switching-off state of the circuit breaker in real time and monitoring the running state of the circuit breaker remotely.
Disclosure of Invention
In view of the foregoing analysis, the present invention aims to provide an internet of things circuit breaker to achieve precise control of opening and closing of the circuit breaker and remote monitoring of an operating state of the circuit breaker.
The purpose of the invention is mainly realized by the following technical scheme:
the embodiment of the invention provides an Internet of things breaker, which comprises: the device comprises a position signal sensor, a detection module, a data processing module and an intelligent control module;
a position signal sensor for emitting a position signal indicative of a position of the position signal sensor;
the detection module is used for detecting the position signal and sending the position signal to the data processing module;
the data processing module is used for determining whether the breaker of the Internet of things completes opening or closing according to the position signal; determining a control mode according to an externally input instruction; determining that the intelligent control module sends a switch control instruction according to the control mode;
the intelligent control module is used for controlling the switch of the Internet of things breaker to be opened or closed according to the switch control instruction.
Further, the data processing module is used for determining an initial position of the position signal sensor at a first moment according to the position signal; determining a target position of the position signal sensor according to a preset electric brake opening and the initial position; determining a current position of the position signal sensor at a second time; and when the current position and the target position coincide, determining that the breaker of the Internet of things completes opening or closing.
Further, the data processing module stores a corresponding relation between the preset electric brake opening and the position change of the position signal sensor in advance; determining the position change of the position signal sensor according to the corresponding relation and the preset electric brake opening; and determining the target position of the position signal sensor according to the position change of the position signal sensor and the initial position.
Furthermore, the intelligent control module is used for controlling the starting or stopping of the position signal sensor through a wireless signal according to an input instruction.
Further, the intelligent control module is also used for collecting one or more of current, voltage and temperature.
Further, the data processing module is also used for calculating active power according to the acquired sine waves of the voltage and the current; advancing 3/4 the current waveform to calculate reactive power; obtaining apparent power according to the active power and the reactive power; and obtaining a power factor according to the active power and the apparent power.
Further, the data processing module is also used for controlling the disconnection of the internet of things breaker according to one or more of the current, the voltage and the temperature.
Further, thing networking circuit breaker still includes: the device comprises a motor (4), a transmission worm (5), a special-shaped turbine gear (6), a cam sector gear (7), a flange transmission gear (8) and a special-shaped sector gear (9);
the intelligent control module is used for sending a starting signal to the motor (4);
the motor (4) drives the special-shaped turbine gear (6) to rotate through the transmission worm (5);
the special-shaped turbine gear (6) drives the cam sector gear (7) to rotate;
the cam sector gear (7) drives the flange transmission gear (8) to rotate;
the flange transmission gear (8) drives the special-shaped sector gear (9) to rotate;
the dynamic special-shaped sector gear (9) drives the switch of the Internet of things breaker to be opened or closed.
Further, the position signal sensor includes: a first position signal sensor and a second position signal sensor;
the first position signal sensor is arranged on the flange transmission gear (8), and the second position signal sensor is arranged on the dynamic special-shaped sector gear (9).
Further, the internet of things breaker comprises a timer, and the timer is used for calculating the electricity utilization time of a user;
the data processing module is also used for determining the electricity consumption of the user according to the electricity consumption time of the user; and when the electricity consumption is higher than a preset electricity upper limit value or lower than a preset electricity lower limit value, sending warning information to the user.
Further, the data processing module is further configured to calculate one or more of an amplitude, a fundamental component, a single harmonic content, and a total harmonic distortion from the current and the voltage.
The invention has the positive effects that: compared with the prior art, the circuit breaker has a digital current and voltage detection function, and the circuit breaker can accurately and intelligently control the Internet of things circuit breaker to perform opening and closing operations by utilizing the cooperation among the position signal sensor, the detection module, the data processing module and the intelligent control module. And digitally acquiring and analyzing the voltage, the current, the active power, the reactive power, the apparent power, the power factor, the electric energy, the total power and the total electric energy of each branch of the circuit breaker. And when the analysis result shows that the parameters exceed the preset values, an alarm is sent to a user so as to realize remote monitoring of the running state of the circuit breaker.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout.
Fig. 1 is a schematic view of the internal mounting structure of the present invention.
Fig. 2 is a schematic view of the connection structure of the internal components of the present invention.
Fig. 3 is another view of the internal component connection structure of the present invention.
Fig. 4 is a schematic view of the position structure of the tripping rod and the flange transmission gear of the invention.
Fig. 5 is a schematic structural view of the trip rod of the present invention.
Fig. 6 is a schematic structural diagram of the profiled worm wheel of the present invention.
Figure 7 is a schematic view of the cam sector of the present invention.
Fig. 8 is a schematic view of the structure of the flange transmission gear of the present invention.
Figure 9 is a schematic view of the construction of the profiled sector gear of the invention.
Fig. 10 is a schematic structural diagram of an internet of things breaker according to the present invention.
Fig. 11 is a circuit diagram of the temperature acquisition circuit of the present invention.
Fig. 12a-12c are circuit diagrams of a three-phase current acquisition circuit of the present invention.
Fig. 13 is a circuit diagram of the leakage current collecting circuit of the present invention.
Fig. 14 is a circuit diagram of a voltage acquisition circuit of the present invention.
Detailed Description
Preferred embodiments of the present invention will now be described in detail with reference to the drawings, it being understood that although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another region, layer or section. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the present invention.
In the prior art, a circuit breaker usually lacks accurate monitoring of a switching-on/off state position, and lacks digital acquisition, analysis and alarm of voltage, current, active power, reactive power, apparent power, power factor, electric energy, total work and total electric energy of each branch of the circuit breaker.
As shown in fig. 1 to 10, the internet of things circuit breaker comprises a circuit breaker shell, a mechanical structure control part arranged in the circuit breaker shell and used for driving the circuit breaker to automatically switch on and off, a detection module, a data processing module, a position signal sensor, an intelligent control module used for controlling the mechanical structure control part to automatically switch on and off, and a communication module connected with the data processing module in a 485 communication mode. The intelligent control module comprises a voltage division circuit for collecting the voltage of the circuit breaker, a current collection circuit for collecting the current of the circuit breaker, a collection circuit for collecting the leakage current of the circuit breaker, a temperature collection circuit for collecting the temperature of the circuit breaker, a motor control module for controlling the automatic opening and closing of the motor and a storage chip for storing electric quantity information. The mechanical structure control part and the position signal sensor are positioned on one side of the shell of the circuit breaker, and the detection module, the communication module, the data processing module and the intelligent control module are positioned on the other side of the shell of the circuit breaker. The position signal sensor includes: a first position signal sensor and a second position signal sensor; the first position signal sensor is arranged on the flange transmission gear 8, and the second position signal sensor is arranged on the dynamic special-shaped sector gear 9. The data processing module is connected with the intelligent control module through the I/O port. The intelligent control module can be a control chip. When the software version of the circuit breaker needs to be upgraded or the detection and operation of the electric quantity information are improved, the intelligent control module and the data processing module can be upgraded remotely.
The position signal sensor is configured to emit a position signal indicative of a position of the position signal sensor. The detection module is used for detecting the position signal and sending the position signal to the data processing module. The data processing module is used for determining whether the breaker of the Internet of things completes opening or closing according to the position signal; according to the control mode selected from the outside, a switch control instruction is sent to the intelligent control module; the intelligent control module is used for controlling the disconnection or the connection of the switch of the breaker of the Internet of things according to the switch control instruction.
Specifically, the data processing module is used for determining an initial position of the position signal sensor at a first moment according to the position signal; determining a target position of the position signal sensor according to the preset electric brake opening and the initial position; determining a current position of the position signal sensor at a second time; and when the current position and the target position coincide, determining that the breaker of the Internet of things finishes opening or closing. It should be noted that, the data processing module stores in advance a corresponding relationship between a preset electric brake opening and a position change of the position signal sensor. Therefore, the data processing module can determine the position change of the position signal sensor according to the corresponding relation and the preset electric brake opening degree; and determining the target position of the position signal sensor according to the position change and the initial position of the position signal sensor.
In an embodiment of the present invention, the intelligent control module is further configured to collect one or more of current, voltage, and temperature. A temperature acquisition circuit, a current acquisition circuit, and a voltage acquisition circuit are provided in the intelligent control module to acquire one or more of current, voltage, and temperature, as shown in fig. 11-14 (including fig. 12a-12 c). The current acquisition circuit comprises a three-phase current acquisition circuit and a leakage current acquisition circuit. Specifically, a voltage dividing and collecting circuit of the intelligent control module is connected with a voltage input of the circuit breaker, a current collecting circuit is connected with a current sensor in the circuit breaker, a leakage current collecting circuit is connected with a leakage current sensor in the circuit breaker, and a temperature collecting circuit is connected with an NTC plate in the circuit breaker.
The data processing module is also used for calculating active power according to the sine waves of the acquired voltage and current; advancing 3/4 the current waveform to calculate reactive power; obtaining apparent power according to the active power and the reactive power; and obtaining the power factor according to the active power and the apparent power. The Internet of things breaker comprises a timer, wherein the timer is used for calculating the electricity utilization time of a user; the data processing module is also used for determining the electricity consumption of the user according to the electricity consumption time of the user; and when the electricity consumption is higher than the preset electricity upper limit value or lower than the preset electricity lower limit value, sending warning information to the user. Through the timer, the circuit breaker still possesses timing function, can carry out two kinds of timing modes of single timing, cycle timing to the circuit breaker. Through the timer, the circuit breaker still possesses the scene timing function, can set up the timing time to certain application scene, accomplishes the timing function.
Specifically, the data processing module collects voltages on a voltage acquisition circuit, a current acquisition circuit, a temperature acquisition circuit and a leakage current acquisition circuit through an A/D module of the data processing module, acquires 32 point positions according to a period to calculate, firstly filters the voltages to enable the collected data to be more accurate, then calculates actual voltages, currents and leakage currents through a root-averaging method, and calculates the actual temperatures through a table look-up method. The active power is calculated by collecting sine waves of voltage and current, the reactive power is calculated by advancing current waveform 3/4, the apparent power is obtained from the active power and the reactive power, and the power factor is obtained from the active power and the apparent power. And then, the electric energy is calculated by a timer at regular time, and the electric quantity information is stored in a storage chip. And then comparing the calculated electric quantity information with an electric quantity upper limit value and an electric quantity lower limit value set by a user. And transmitting the comparison result and the calculated electric quantity information into a cloud end through a communication module, and generating alarm information when the electric quantity information exceeds an upper limit and a lower limit set by a user. Cell-phone APP can be real-time look up electric quantity information and alarm information.
Because loads such as a motor, a transformer, a power capacitor, a cable and the like are in frequent variation, a series or parallel resonance condition is easily formed by the loads and a large number of harmonic sources contained in a power grid, harmonic oscillation is formed, overvoltage or overcurrent is generated, and the safe operation of the circuit breaker is endangered. Therefore, the data processing module still calculates harmonic content and with the relevant parameter of harmonic according to the data that intelligent control module gathered to whether relevant personnel can real time monitoring circuit breaker safe operation, specific process is:
the voltage and current data collected by the intelligent control module are respectively:
un(k-1)，un(k)，un(k+1)，.....，u(n+1)(k-1)，u(n+1)(k)，u(n+1)(k+1)，........(1)
in(k-1)，in(k)，in(k+1)，......，i(n+1)(k-1)，i(n+1)(k)，i(n+1)(k+1)，......(2)
wherein n represents the nth sampling period of the sinusoidal signal, and k represents the kth sampling point in the nth sampling period of the sinusoidal signal;
for the acquisition sequence of voltage, current its Discrete Fourier Transform (DFT) is:
wherein x (k) represents the DFT-transformed data, x (n) is the sampled analog signal, x (n) in the formula can be a negative signal, and in practice, x (n) is both signals, i.e. the imaginary part is 0, and at this time, the formula can be expanded to obtain formula 1:
the calculation of harmonics can be divided into real and imaginary parts in the program calculation based on this formula.
rm (2/N) × SUM (fk × cos (2 × m × k PI/N)) … formula 2
im (2/N) × SUM (fk × sin (2 × m × k × PI/N)) … formula 3
Finally, obtaining the amplitude Fm according to the formula 4:
fm ═ sqrt (Rm ^2+ Im ^2) … … … … … … … … … formula 4
Where Rm denotes the real part, Im denotes the imaginary part, and Fm denotes the magnitude.
N represents the sampling number of a period, fk represents the voltage u collected by the intelligent control module in a collection periodkOr current ikM represents the harmonic order, k represents the number of sampling points, PI represents PI, and 2 × PI/N represents the sampling interval. m is 1 to extract the data as fundamental wave, m is 2 to extract the second order wave.
The calculation method of the fundamental component comprises the following steps:
an intelligent control module is required to collect 32 point positions in a complete sine wave period, the ADC is used for collecting and processing every 4 times, the amplitude of single sine wave and cycle wave data is obtained after 8 times of processing, and fundamental wave components are obtained by calculating the average value of the cycle wave data in the amplitude space.
The method for calculating the content of the single harmonic comprises the following steps:
and multiplying the harmonic amplitude of the Nth period by a harmonic compensation table to obtain an average value, and dividing the single harmonic by the fundamental component to obtain the fundamental content.
Total distortion rate of harmonics:
and squaring the single harmonic and then accumulating to obtain a total harmonic, and squaring and dividing by the coefficient to obtain the total harmonic distortion.
The personnel can determine whether the harmonics can cause the circuit breaker to malfunction or damage based on one or more of the calculated amplitude, fundamental component, single harmonic content, and total harmonic distortion.
In the embodiment of the invention, the mechanical structure control part comprises a plastic shell insulating shell 1, a motor 4 which is arranged on one side in the shell and connected with an external power supply, a key 3 which is arranged on the outer side of the shell and used for controlling the starting of the motor, a dial switch 14 which is arranged on the shell and used for controlling the remote maintenance of the Internet of things breaker, and an intelligent control module which is arranged in the shell and connected with the motor 4. Wherein, the output end of the motor 4 in the shell is connected with a transmission worm 5, and the transmission worm 5 is meshed with a special-shaped worm wheel 6. The special-shaped worm wheel 6 is arranged on the shell through a pin shaft, the special-shaped worm wheel 6 comprises a helical gear 601, a straight gear 602 and a lightening hole 604 which are coaxially arranged, wherein the special-shaped worm wheel 6 is meshed with the transmission worm through the helical gear 601, an arc-shaped groove 603 is arranged on the teeth of the helical gear 601, and the arc-shaped groove 603 is matched with the shaft of the transmission worm. The special-shaped worm wheel 6 is meshed with a flange transmission gear 8 which is arranged on the shell by a pin shaft through a straight gear 602. The flange transmission gear 8 is coaxially provided with a cam sector gear 7, the cam sector gear 7 and the first position signal sensor 10 are respectively positioned on two sides of the flange transmission gear 8, the cam sector gear 7 comprises a cam 701 and a sector gear 702 which are coaxially arranged, a fixed angle of 76.8 degrees is formed between a middle division line of the cam 701 and a middle division line of the sector gear 702, and the cam sector gear 7 is in transmission connection with a special-shaped sector gear 9. The shaft center of the special-shaped sector gear 9 is installed on the shell through a pin shaft, the special-shaped sector gear 9 comprises a sector gear 901 and a special-shaped cylindrical shaft 902 which are coaxially arranged, the cross section of the special-shaped cylindrical shaft 902 is in a gourd shape, the edge of one end of the special-shaped cylindrical shaft 902 is overlapped with the edge of the sector gear, and the second position signal sensor 11 is fixedly connected to the top surface of the special-shaped cylindrical shaft 902.
A shell on one side of the cam sector gear 7 is provided with a tripping pull rod 2, the tripping pull rod 2 and the special-shaped worm wheel 6 are respectively positioned on two sides of the cam sector gear 7, the tripping pull rod 2 comprises a first pull rod 201 and a second pull rod 202, the second pull rod 202 is horizontally arranged, the first pull rod 201 and the second pull rod 202 are integrally bent, one end of the first pull rod 201 close to the cam sector gear 7 is a first pull rod end 2011, the other end of the first pull rod is a first pull rod second end 2012, a tension spring connecting hole 2013 is reserved on the first pull rod second end 2012, a tension spring 13 is connected in the tension spring connecting hole 2013, the other end of the tension spring 13 is fixed on the shell through a pin shaft, the tension spring 13 is arranged perpendicular to the second pull rod 202, one end of the second pull rod far away from the first pull rod is a second pull rod first end 2021, the other end of the second pull rod is a second pull rod second end 2022, and the second pull rod first end 2021 is fixed on the shell through a pin shaft, the second end 2022 of the second pull rod is provided with a horizontal U-shaped groove 2023, the lower inner side surface of the U-shaped groove 2023 is flush with the top surface of the first pull rod 201, and the upper inner side surface of the U-shaped groove 2023 is higher than the top surface of the first pull rod 201; a deflector rod connecting plate 203 is further fixedly connected at the joint of the first pull rod 201 and the second pull rod 202, an arc-shaped groove is formed in the bottom surface of the deflector rod connecting plate 203, a deflector rod connecting shaft is inserted in the arc-shaped groove, and the deflector rod connecting shaft is fixedly connected with a deflector rod 14 of the circuit breaker; a push-pull electromagnet 12 is clamped in the shell 1, the push-pull electromagnet 12 is connected with an external power supply, a draw bar of the push-pull electromagnet 12 is perpendicular to the second draw bar 202, an annular groove 1201 is formed in the end portion of the draw bar of the push-pull electromagnet 12, and the annular groove is sleeved in a U-shaped groove 2023 of the second draw bar.
In the embodiment of the invention, the control of the breaker of the internet of things is mainly divided into a remote overhaul mode and a non-remote overhaul mode.
When the breaker is in the non-remote overhaul mode, an operator selects the non-remote overhaul mode through a button, and the data processing module defaults that the Internet of things breaker is in a brake-off state and needs to execute a switch-on operation; and sends a motor closing forward rotation command to the intelligent control module. At this time, the intelligent control module sends a starting signal to the motor 4 and sends a starting instruction to the first position signal sensor and the second position signal sensor. The motor 4 drives the special-shaped turbine gear 6 to rotate through the transmission worm 5; the special-shaped turbine gear 6 drives the cam sector gear 7 to rotate; the cam sector gear 7 drives the flange transmission gear 8 to rotate; the flange transmission gear 8 drives the special-shaped sector gear 9 to rotate; the special-shaped sector gear 9 drives a switch of the Internet of things breaker to be switched on, the detection module monitors the initial positions and the current positions of the first position signal sensor and the second position signal sensor in real time, and the positions of the first position signal sensor and the second position signal sensor are sent to the data processing module. The data processing module determines the position change of the position signal sensor according to the corresponding relation and the preset electric brake opening, and the position change is the rotation angle of the flange transmission gear 8 and the special-shaped sector gear 9; and determining the target position of the position signal sensor according to the position change of the position signal sensor and the initial position. And when the current position and the target position coincide, the data processing module determines that the switch of the breaker of the Internet of things is closed. The data processing module sends closing completion information to the intelligent control module, the intelligent control module stops the motor from rotating after receiving the information, the first position signal sensor and the second position signal sensor are closed, and the red light is turned on to prompt that closing is completed.
After an operator presses the button again in a non-remote maintenance mode, the data processing module defaults that the Internet of things breaker is in a closing state and needs to execute opening operation. And issues a motor brake-off forward rotation command to the intelligent control module. At this time, the intelligent control module sends a starting signal to the motor 4 and sends a starting instruction to the first position signal sensor and the second position signal sensor. The motor 4 drives the special-shaped turbine gear 6 to rotate through the transmission worm 5; the special-shaped turbine gear 6 drives the cam sector gear 7 to rotate; the cam sector gear 7 drives the flange transmission gear 8 to rotate; the flange transmission gear 8 drives the special-shaped sector gear 9 to rotate; the special-shaped sector gear 9 drives a switch of the Internet of things breaker to be switched on, the detection module monitors the initial positions and the current positions of the first position signal sensor and the second position signal sensor in real time, and the positions of the first position signal sensor and the second position signal sensor are sent to the data processing module. The data processing module determines the position change of the position signal sensor according to the corresponding relation and the preset electric brake opening, and the position change is the rotation angle of the flange transmission gear 8 and the special-shaped sector gear 9; and determining the target position of the position signal sensor according to the position change of the position signal sensor and the initial position. And when the current position and the target position coincide, the data processing module determines that the switch of the breaker of the Internet of things finishes disconnection. The data processing module sends brake-off completion information to the intelligent control module, the intelligent control module stops the motor from rotating after receiving the information, the first position signal sensor and the second position signal sensor are closed, the green light is turned on to prompt that the brake is switched off, and brake-off operation is completed.
When the remote overhaul mode is triggered, an operator selects the remote overhaul mode through a button, the data processing module defaults to a brake-off state, and the switching-on operation needs to be executed; and a motor switching-on reverse command is issued to the intelligent control module, and at the moment, the intelligent control module sends a starting signal to the motor 4 and sends a starting instruction to the first position signal sensor and the second position signal sensor. The motor 4 drives the special-shaped turbine gear 6 to rotate through the transmission worm 5; the special-shaped turbine gear 6 drives the cam sector gear 7 to rotate; the cam sector gear 7 drives the flange transmission gear 8 to rotate; the flange transmission gear 8 drives the special-shaped sector gear 9 to rotate; the special-shaped sector gear 9 drives a switch of the Internet of things breaker to be switched on, the detection module monitors the initial positions and the current positions of the first position signal sensor and the second position signal sensor in real time, and the positions of the first position signal sensor and the second position signal sensor are sent to the data processing module. The data processing module determines the position change of the position signal sensor according to the corresponding relation and the preset electric brake opening, and the position change is the rotation angle of the flange transmission gear 8 and the special-shaped sector gear 9; and determining the target position of the position signal sensor according to the position change of the position signal sensor and the initial position. And when the current position and the target position coincide, the data processing module determines that the switch of the breaker of the Internet of things is closed. The data processing module sends closing completion information to the intelligent control module, the intelligent control module stops the motor from rotating after receiving the information, the first position signal sensor and the second position signal sensor are closed, and the red light is turned on to prompt that closing is completed. Then, the maintenance worker can only perform manual opening and closing.
In addition, the data processing module is also used for controlling the opening and closing of the internet of things breaker according to one or more of current, voltage and temperature. For example, the data processing module controls the wireless breaker switch to open directly in a non-remote service mode when one or more of current, voltage and temperature exceeds a safe value.
As for the situation that a plurality of circuit breakers are possibly needed in one scene, the row bus is arranged on each circuit breaker, so that the circuit breakers can be connected with one another, and the expansion is simple and convenient. Simultaneously, arrange female setting and can also realize the automatic allocation of address, can be with circuit breaker automatic sequencing, the user can play a name for the circuit breaker according to the sequencing on cell-phone APP, convenience of customers is to the management of circuit.
Specifically, the bus bar respectively provides 4 interfaces, wherein the first interface and the fourth interface are used for power supply, and the second interface and the third interface are used for communication. The communication of circuit breaker comprises 485 communications, USART communication, and communication switching chip. After the power is on, the default communication mode is the 485 communication mode, all the circuit breakers are connected to the 485 communication line in a hanging mode through bus bars, and the communication module acquires data information acquired by all the circuit breakers through polling all the circuit breakers. When the slave address of the circuit breaker needs to be set, the automatic address allocation mode needs to be triggered by pressing a key of the slave 1 for more than three seconds. The communication switching chip switches the 485 communication mode into a USART communication mode, a circuit breaker which presses a key is defaulted to be a slave machine No. 1, then an instruction of the slave machine No. 2 is sent to a next circuit breaker, the next circuit breaker stores the instruction of the slave machine No. 2 into a storage module of the next circuit breaker, the next circuit breaker is defaulted to be the slave machine No. 2, and then an instruction of the slave machine No. 3 is sent to the next slave machine. And the slave address allocation of all the circuit breakers is finished by analogy. After the distribution is finished, the communication switching chip automatically switches the communication into a 485 communication mode and waits for the next polling instruction of the communication module.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (10)
1. An internet of things breaker, comprising: the device comprises a position signal sensor, a detection module, a data processing module and an intelligent control module;
a position signal sensor for emitting a position signal indicative of a position of the position signal sensor;
the detection module is used for detecting the position signal and sending the position signal to the data processing module;
the data processing module is used for determining whether the breaker of the Internet of things completes opening or closing according to the position signal; determining a control mode according to an externally input instruction; determining that the intelligent control module sends a switch control instruction according to the control mode;
the intelligent control module is used for controlling the switch of the Internet of things breaker to be opened or closed according to the switch control instruction.
2. The Internet of things breaker of claim 1,
the data processing module is used for determining the initial position of the position signal sensor at a first moment according to the position signal; determining a target position of the position signal sensor according to a preset electric brake opening and the initial position; determining a current position of the position signal sensor at a second time; and when the current position and the target position coincide, determining that the breaker of the Internet of things completes opening or closing.
3. The Internet of things breaker of claim 2,
the data processing module is pre-stored with a corresponding relation between the preset electric brake opening and the position change of the position signal sensor; determining the position change of the position signal sensor according to the corresponding relation and the preset electric brake opening; and determining the target position of the position signal sensor according to the position change of the position signal sensor and the initial position.
4. The Internet of things breaker of claim 1,
the intelligent control module is used for controlling the starting or stopping of the position signal sensor through a wireless signal according to an input instruction.
5. The Internet of things breaker of claim 1,
the intelligent control module is also used for collecting one or more of current, voltage and temperature.
6. The Internet of things breaker of claim 5,
the data processing module is also used for calculating active power according to the sine waves of the acquired voltage and current; advancing 3/4 the current waveform to calculate reactive power; obtaining apparent power according to the active power and the reactive power; and obtaining a power factor according to the active power and the apparent power.
7. The Internet of things breaker of claim 5,
the data processing module is further used for controlling the disconnection of the Internet of things breaker according to one or more of the current, the voltage and the temperature.
8. The Internet of things breaker of claim 7,
the thing networking circuit breaker still includes: the device comprises a motor (4), a transmission worm (5), a special-shaped turbine gear (6), a cam sector gear (7), a flange transmission gear (8) and a special-shaped sector gear (9);
the intelligent control module is used for sending a starting signal to the motor (4);
the motor (4) drives the special-shaped turbine gear (6) to rotate through the transmission worm (5);
the special-shaped turbine gear (6) drives the cam sector gear (7) to rotate;
the cam sector gear (7) drives the flange transmission gear (8) to rotate;
the flange transmission gear (8) drives the special-shaped sector gear (9) to rotate;
the dynamic special-shaped sector gear (9) drives the switch of the Internet of things breaker to be opened or closed.
9. The Internet of things breaker of claim 8,
the position signal sensor includes: a first position signal sensor and a second position signal sensor;
the first position signal sensor is arranged on the flange transmission gear (8), and the second position signal sensor is arranged on the dynamic special-shaped sector gear (9).
10. The Internet of things breaker of claim 5,
the data processing module is further used for calculating one or more of amplitude, fundamental component, single harmonic content and harmonic total distortion according to the current and the voltage.
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| CN202111207955.0A CN113990716A (en) | 2021-10-18 | 2021-10-18 | Internet of things breaker |
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