CN118399580B - Smart electric meter based on multiple power supplies and power supply control method - Google Patents

Smart electric meter based on multiple power supplies and power supply control method Download PDF

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Publication number
CN118399580B
CN118399580B CN202410865125.4A CN202410865125A CN118399580B CN 118399580 B CN118399580 B CN 118399580B CN 202410865125 A CN202410865125 A CN 202410865125A CN 118399580 B CN118399580 B CN 118399580B
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power supply
wireless
intelligent ammeter
module
abnormal state
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CN118399580A (en
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张益�
陈长春
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Sichuan Zhongweineng Power Technology Co ltd
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Sichuan Zhongweineng Power Technology Co ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20End-user application control systems

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Abstract

The invention discloses a multi-power-supply-based intelligent ammeter and a power supply control method, and relates to the technical field of intelligent ammeters, comprising an intelligent ammeter body, a main power supply, a standby power supply, an abnormal state power supply component and a power supply switching control module based on power supply interruption detection, wherein the main power supply is electrically connected with a power supply input terminal of the intelligent ammeter body, and the standby power supply is electrically connected with the power supply input terminal of the intelligent ammeter body through the power supply switching control module; the intelligent ammeter body is powered by adopting three power modes, and when the fact that the power supply voltage of the circuit board of the intelligent ammeter body is lower than a set threshold value is detected when the power supply of the main power supply is detected, the power supply switching control module can control the standby power supply to supply power for the intelligent ammeter body; the abnormal state power supply module can provide more reliable power supply redundancy for the intelligent ammeter body, and more stable power supply is provided for the intelligent ammeter body under the extreme working condition in the field.

Description

Smart electric meter based on multiple power supplies and power supply control method
Technical Field
The invention relates to the technical field of intelligent electric meters, in particular to an intelligent electric meter based on multiple power supplies and a power supply control method.
Background
The intelligent ammeter is taken as modern electric power metering equipment, and has the functions of remote meter reading, real-time monitoring, fault diagnosis, prepayment, peak-valley electricity price and the like besides the basic electric power metering function. The characteristics enable the intelligent ammeter to play an important role in various application scenes. The following are a few smart meter's multi-application scenarios
Residential home: and the household electricity consumption condition is monitored in real time, so that a user is helped to know and manage the household energy consumption. Remote meter reading reduces inconvenience and errors caused by manual meter reading.
Commercial building: and the electricity consumption of different departments or tenants is independently measured, so that the energy management and the cost allocation are facilitated.
Industrial electricity: the method is used for monitoring the energy consumption of production lines and equipment, optimizing the production flow and reducing the energy waste.
Distributed power generation: in a solar energy, wind energy and other distributed power generation system, the intelligent ammeter can accurately measure the generated energy and the used energy, and data support is provided for the online price of electricity.
Smart grid: as a terminal device of the smart grid, the smart meter supports demand response and helps a grid operator to realize load management.
The intelligent ammeter mainly uses electronic components to measure electric energy and collect data, and the electronic components can work only by supplying power regularly. In general, the smart meter can supply power through a power grid, and can be equipped with power supply equipment such as a battery or a solar panel for the need of time and time.
For the smart meter powered by the battery, the smart meter may fail under severe working conditions, such as extreme temperature, high humidity, strong electromagnetic interference, and the like. The battery failure can affect the normal operation of the smart meter, especially when power is off, the meter may not be able to save data, maintain time synchronization, or perform key functions such as remote communication. In order to solve this problem, the prior art generally selects a high quality battery that can better accommodate extreme temperature and humidity changes, has a longer service life and better chemical stability, or takes protective measures on the battery, such as using battery protection plates, temperature control devices, etc., to prevent overcharging, overdischarging, and overheating of the battery.
The scheme can improve the reliability of the power supply battery of the intelligent ammeter to a certain extent, but under the condition that the battery is dropped or damaged due to abnormal collision and the like in some extreme scenes, the situation of power failure still occurs.
Disclosure of Invention
In order to solve the technical problems, the invention provides a multi-power-supply-based intelligent ammeter and a power supply control method. The following technical scheme is adopted:
The intelligent ammeter based on the multiple power supplies comprises an intelligent ammeter body, a main power supply, a standby power supply, an abnormal state power supply module and a power supply switching control module based on power supply interruption detection, wherein the main power supply is electrically connected with a power supply input terminal of the intelligent ammeter body, and the standby power supply is electrically connected with the power supply input terminal of the intelligent ammeter body through the power supply switching control module;
The abnormal state power supply component is arranged at a fixed point within a set distance around the intelligent ammeter body and supplies power to the intelligent ammeter body in a wireless power supply mode;
The power supply switching control module detects the power supply state of the intelligent ammeter body, and when the detected power supply state is that the main power supply supplies power and the power supply voltage of the circuit board of the intelligent ammeter body is lower than a set voltage threshold value, the standby power supply is controlled to be switched on with the power supply input terminal of the intelligent ammeter body to perform standby power supply;
The power supply switching control module detects whether the intelligent ammeter body vibrates beyond a set vibration threshold value or not, and respectively controls the main power supply and the standby power supply to supply power to the intelligent ammeter body after the vibration occurs, if the power supply fails, abnormal signals are detected by wireless interactive power supply of the abnormal state power supply assembly, and the abnormal state power supply assembly is controlled to start to supply power wirelessly to the intelligent ammeter body.
By adopting the technical scheme, three power modes are adopted to supply power to the intelligent ammeter body, a main power supply is adopted to supply power under a normal state, the main power supply can be a dry battery, a lithium battery or a power grid for power taking, when the main power supply is detected to supply power, the power supply voltage of a circuit board of the intelligent ammeter body is lower than a set threshold value, at the moment, the main power supply is determined to be under-voltage or abnormal, the power supply switching control module can control a standby power supply to supply power to the intelligent ammeter body, and the standby power supply can be in the form of batteries such as a dry battery or a lithium battery;
The power supply switching control module can also detect the vibration condition of the intelligent ammeter body, when the vibration condition of the intelligent ammeter body exceeds the set vibration threshold value, the intelligent ammeter body is considered to have severe collision and other extreme conditions, the power supply voltage needs to be detected at the moment, if the power supply voltage is lower than the set value or is 0, the main power supply or the standby power supply cannot be connected to the power supply of the intelligent ammeter body, the abnormal state power supply module is started at the moment, the abnormal state power supply module adopts a wireless power supply mode to supply power to the intelligent ammeter body, the wireless power supply mode can be realized in the forms of radio frequency wireless power supply, magnetic induction wireless power supply or optical energy wireless power supply and the like, the abnormal state power supply module is arranged at a fixed point in the set distance around the intelligent ammeter body, for example, the vibration condition of the intelligent ammeter body can come from abnormal extreme conditions such as active damage, high-altitude objects or earthquakes, the abnormal state power supply module can not be subjected to the same damage, the abnormal state power supply module does not consider the same function and structural design of the intelligent ammeter body, the abnormal state power supply module can adopt a firm anti-damage design, the intelligent ammeter body can be provided with more reliable power supply conditions in the field, and the intelligent ammeter body can be provided with more stable power supply conditions.
Optionally, abnormal state power supply module includes protection box body subassembly, universal cloud platform, abnormal state power supply battery group, wireless power supply transmitting unit and wireless power supply receiving unit, protection box body subassembly demountable installation sets for the fixed point in the distance around the smart electric meter body, and the base of abnormal state power supply battery group and universal cloud platform is fixed mounting in protection box body subassembly inner wall bottom respectively, wireless power supply transmitting unit includes wireless power supply transmitter and wireless power supply emission controller based on the chip, and wireless power supply transmitter demountable installation is at the rotation portion of universal cloud platform, and wireless power supply receiving unit includes locator and wireless power supply receiver, and wireless power supply receiver and locator are installed respectively inside the smart electric meter body to through power supply switching control module and smart electric meter body's power supply input terminal electricity connection, the locator is used for gathering wireless power supply receiver position, wireless power supply emission controller and locator communication connection, the action of positioning data control universal cloud platform according to the locator makes wireless power supply transmitter aim at wireless power supply receiver and turn on wireless power supply, wireless power supply emission controller and switch control module wireless communication connection.
Optionally, the protection box body subassembly includes box body frame and four automatically controlled lift doors, and the four sides of box body frame are the open mode, and the fixed point that sets for around the smart electric meter body in the distance sets up the built-in fitting, the bottom of box body frame passes through rag bolt demountable installation at smart electric meter body built-in fitting top, and four automatically controlled lift doors are installed respectively in the four sides opening part of box body frame, and the lift of four automatically controlled lift doors is controlled respectively to wireless power supply emission controller.
Optionally, the four electric control lifting doors are made of nonmetallic high-strength materials.
By adopting the technical scheme, in practical application, the abnormal state power supply battery pack can be in a power taking form of a lithium battery, a dry battery or a power grid, the abnormal state power supply battery pack of one abnormal state power supply assembly can supply power for one or more intelligent ammeter bodies in a regional range in an abnormal state, and four electric control lifting doors can be controlled to be opened during power supply, so that the wireless power supply efficiency is higher; the locator gathers wireless power supply receiver position data, and wireless power supply emission controller control universal cloud platform action makes wireless power supply transmitter aim at wireless power supply receiver and open wireless power supply to avoid carrying out line connection under the abnormal state, ensured the wireless power supply demand under the extreme abnormal state.
Optionally, the wireless power supply emission controller comprises a wireless communication module, a memory, a main control chip and a positioning receiver, wherein the main control chip is in wireless communication connection with the power supply switching control module through the wireless communication module and in communication connection with the memory, the positioning receiver is in wireless communication with the positioning device to interact positioning data of the positioning device, and the main control chip respectively controls the universal holder, the wireless power supply emission unit and the execution actions of the four electric control lifting doors.
By adopting the technical scheme, the wireless communication of the wireless power supply emission controller can be realized by adopting a short-distance wireless communication technology, such as Bluetooth, wireless microwave, zigBee technology and the like.
Alternatively, the wireless communication module and the positioning receiver are implemented using UWB wireless communication chips.
By adopting the above-described technical scheme, ultra Wideband (UWB) technology is a wireless communication technology that uses a very wide spectrum bandwidth (typically greater than 500 MHz) to transmit data. The transceiving implementation of UWB chips involves a number of aspects including Radio Frequency (RF) front-end, modem, data processing and interface, etc. Short-range positioning and wireless communication can be realized.
Optionally, the power supply switching control module comprises a housing, multichannel logic switch circuit based on wireless signal control, a vibration sensor, a detection end memory, a data analysis chip, a control chip, a detection end wireless transceiver module and a wireless voltage sensor, the housing is fixedly installed on the inner wall of the housing of the smart electric meter body through bolts, the vibration sensor is installed on the inner wall of the housing, vibration data of the housing are detected, and the power supply switching control module is in communication connection with the detection end memory, a main power supply, a standby power supply and an abnormal state power supply module are respectively and electrically connected with a power supply input terminal of the smart electric meter body through the multichannel logic switch circuit, the wireless voltage sensor detects the power supply voltage of the smart electric meter body circuit board and is in wireless communication connection with the detection end wireless transceiver module, the data analysis chip acquires vibration data of the vibration sensor and is compared with a set vibration threshold, if the set vibration threshold is exceeded, the control chip controls the action of the multichannel logic switch circuit, and the main power supply, the standby power supply or the abnormal state power supply module is connected into the power supply of the smart electric meter body.
Optionally, the multiplexing logic switch circuit is a wireless multiplexer switch module.
By adopting the technical scheme, the multiplexing logic switch circuit can be a wireless multiplexer switch module, and the basic components of the multiplexing logic switch circuit comprise: an input end: the multiway switching circuit has a plurality of input signals, generally denoted as i_0, i_1, i_2.
And the control end: the control signals (s_0, s_1,) s_m are used to select which input signal is transmitted to the output. The number of control signals m determines the number of input signals that the circuit can select.
And an output end: the output receives the selected input signal.
Switching element: the switching element may be an electromechanical relay, a transistor (e.g., MOSFET), a diode, etc., which is turned on or off depending on the state of the control signal.
The automatic switching between the power supply circuits under the control of the wireless signal can be realized,
The intelligent ammeter power supply control method based on the multiple power supplies adopts the intelligent ammeter based on the multiple power supplies to realize the control of the multiple power supplies, and comprises the following two abnormal power supply control methods:
Under the normal power supply state, the main power supply supplies power to the intelligent ammeter body through the multi-path logic switch circuit, when the wireless voltage sensor detects that the power supply voltage of the circuit board is lower than the set voltage threshold value, the main power supply is determined to be under-voltage, the control chip wirelessly sends a switching instruction to the multi-path logic switch circuit through the detection end wireless transceiver module, and the standby power supply is replaced to supply power to the intelligent ammeter body through the multi-path logic switch circuit;
When the standby power supply supplies power for standby, if the data analysis chip analyzes that the vibration data exceeds the set vibration threshold value and the interaction result of the control chip, the control chip controls the multi-path logic switch circuit to act so that the abnormal state power supply battery pack is connected into the intelligent ammeter body to supply power.
Optionally, when the abnormal state power supply battery pack is used for supplying power to the intelligent ammeter body, the control chip wirelessly broadcasts an abnormal state signal to the remote control center through the detection end wireless transceiver module.
Through adopting above-mentioned technical scheme, detection end wireless transceiver module can be through the network of radio communication access electric wire netting to realize to the wireless broadcast abnormal state signal of remote control center, make the staff know the abnormal conditions of smart electric meter body in the first time, the condition reaches on-the-spot maintenance.
In summary, the present invention includes at least one of the following beneficial technical effects:
The invention can provide the intelligent ammeter based on multiple power supplies and the power supply control method, three power supply modes are adopted to supply power to the intelligent ammeter body, the main power supply is adopted to supply power in a normal state, when the power supply of the main power supply is detected, the power supply voltage of the circuit board of the intelligent ammeter body is lower than a set threshold value, and the power supply switching control module can control the standby power supply to supply power to the intelligent ammeter body;
The power supply switching control module can also detect the vibration condition of the intelligent ammeter body, when the vibration condition of the intelligent ammeter body exceeds a set vibration threshold value, the intelligent ammeter body is considered to have severe collision and other extreme conditions, the power supply voltage needs to be detected at the moment, if the power supply voltage is lower than a set value or is 0, the abnormal state power supply module is started at the moment, the abnormal state power supply module adopts a wireless power supply mode to supply power for the intelligent ammeter body, the abnormal state power supply module is arranged at a fixed point in a set distance around the intelligent ammeter body, the abnormal state power supply module does not consider the same function and structural design of the intelligent ammeter body, a firmer anti-damage design can be adopted, more reliable power supply redundancy can be provided for the intelligent ammeter body, and more stable power supply can be provided for the intelligent ammeter body under outdoor extreme working conditions.
Drawings
Fig. 1 is a schematic diagram of the electrical device connection principle of the multi-power-source-based smart meter of the present invention;
FIG. 2 is a schematic diagram of the electrical device connection principle of the multi-power-source-based smart meter power supply switching control module of the present invention;
Fig. 3 is a schematic diagram of the positional relationship between the smart meter based on multiple power sources and the abnormal state power supply module according to the present invention.
Reference numerals illustrate: 1. a main power supply; 2. a standby power supply; 31. a protective case assembly; 311. a box frame; 312. an electric control lifting door; 32. an abnormal state power supply battery pack; 331. a wireless powered transmitter; 332. a wireless power supply emission controller; 3321. a wireless communication module; 3322. a memory; 3323. a main control chip; 3324. locating the receiver; 341. a positioner; 342. a wireless power supply receiver; 35. universal cradle head; 4. a power supply switching control module; 43. a multi-way logic switch circuit; 44. a vibration sensor; 45. a detection end memory; 46. a data analysis chip; 47. the detection end wireless receiving and transmitting module; 48. a wireless voltage sensor; 49. a control chip; 100. a smart meter body; 101. and a remote control center.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The embodiment of the invention discloses a smart electric meter based on multiple power supplies and a power supply control method.
Referring to fig. 1-3, embodiment 1, a multi-power-source-based smart meter, includes a smart meter body 100, a main power supply 1, a standby power supply 2, an abnormal-state power supply component, and a power supply switching control module 4 based on power interruption detection, the main power supply 1 is electrically connected with a power supply input terminal of the smart meter body 100, and the standby power supply 2 is electrically connected with the power supply input terminal of the smart meter body 100 through the power supply switching control module 4;
the abnormal state power supply component is arranged at a fixed point within a set distance around the intelligent ammeter body 100, and a wireless power supply mode is adopted to supply power to the intelligent ammeter body 100;
The power supply switching control module 4 detects the power supply state of the intelligent ammeter body 100, and when the detected power supply state is that the main power supply 1 supplies power and the power supply voltage of the circuit board of the intelligent ammeter body 100 is lower than a set voltage threshold value, the standby power supply 2 is controlled to be switched on with the power supply input terminal of the intelligent ammeter body 100 for standby power supply;
The power supply switching control module 4 detects whether the intelligent ammeter body 100 vibrates beyond a set vibration threshold value, and respectively controls the main power supply 1 and the standby power supply 2 to supply power to the intelligent ammeter body 100 after the vibration occurs, if the power supply fails, abnormal signals are detected by wireless interactive power supply of the abnormal state power supply components, and the abnormal state power supply components are controlled to start to supply power wirelessly to the intelligent ammeter body 100.
Three power modes are adopted to supply power to the intelligent ammeter body 100, a main power supply 1 is adopted to supply power in a normal state, the main power supply 1 can be a dry battery, a lithium battery or a power grid to supply power, when the main power supply 1 is detected to supply power, the power supply voltage of a circuit board of the intelligent ammeter body 100 is lower than a set threshold value, at the moment, the main power supply 1 is determined to be under-voltage or abnormal, a power supply switching control module 4 can control a standby power supply 2 to supply power to the intelligent ammeter body 100, and the standby power supply 2 can be in a battery form of the dry battery or the lithium battery and the like;
the power supply switching control module 4 can also detect the vibration condition of the smart meter body 100, when the vibration condition of the smart meter body 100 exceeds the set vibration threshold, it is considered that the smart meter body 100 has severe collision and other extreme conditions, at this time, it is required to detect the power supply voltage, if the power supply voltage is lower than the set value or is 0, it is considered that the main power supply 1 or the standby power supply 2 cannot be connected to the smart meter body 100 for power supply, at this time, an abnormal state power supply component is started, the abnormal state power supply component adopts a wireless power supply mode to supply power for the smart meter body 100, the wireless power supply mode can be realized in the forms of radio frequency wireless power supply, magnetic induction wireless power supply or optical energy wireless power supply, and the like, since the abnormal state power supply component is arranged at a fixed point in the set distance around the smart meter body 100, for example, the position in the range of five meters near the smart meter body 100, the vibration condition of the smart meter body 100 can come from the abnormal extreme conditions such as active damage, high-altitude falling or earthquake, the abnormal state power supply component can not be avoided from being damaged equally in the same place, the abnormal state power supply component does not consider the same function and structural design of the smart meter body 100, the same as the smart meter body can adopt firm anti-damage, the intelligent meter body can provide more stable power supply condition for the smart meter body 100.
In embodiment 2, the abnormal state power supply module includes a protection box body module 31, a universal cradle head 35, an abnormal state power supply battery pack 32, a wireless power supply transmitting unit and a wireless power supply receiving unit, the protection box body module 31 is detachably installed at a fixed point within a set distance around the smart meter body 100, the abnormal state power supply battery pack 32 and the base of the universal cradle head 35 are respectively fixedly installed at the bottom of the inner wall of the protection box body module 31, the wireless power supply transmitting unit includes a wireless power supply transmitter 331 and a wireless power supply transmitting controller 332 based on a chip, the wireless power supply transmitter 331 is detachably installed at a rotating part of the universal cradle head 35, the wireless power supply receiving unit includes a locator 341 and a wireless power supply receiver 342, the wireless power supply receiver 342 and the locator 341 are respectively installed inside the smart meter body 100, and are electrically connected with a power supply input terminal of the smart meter body 100 through a power supply switching control module 4, the locator 341 is used for collecting the position of the wireless power supply receiver 342, the wireless power supply transmitting controller 332 is in communication connection with the locator 341, the universal cradle head 35 is controlled to act according to positioning data of the locator 341, the wireless power supply transmitter 331 is aligned with the wireless power supply receiver 342 and the wireless power supply transmitter is started, and the wireless power supply transmitter 331 is started to transmit wireless power supply receiver 342.
Embodiment 3, protection box body subassembly 31 includes box body frame 311 and four automatically controlled lift gates 312, and the four sides of box body frame 311 are the open state, and the fixed point that sets for around the smart electric meter body 100 in the distance sets up the built-in fitting, and the bottom of box body frame 311 passes through rag bolt demountable installation at smart electric meter body 100 built-in fitting top, and four automatically controlled lift gates 312 are installed respectively in the four sides opening part of box body frame 311, and the lift of four automatically controlled lift gates 312 is controlled respectively to wireless power supply emission controller 332.
In embodiment 4, the four electrically controlled lift gates 312 are made of non-metallic high strength materials.
Such as carbon fiber material, polypropylene material, polytetrafluoroethylene material, etc.
In practical application, the abnormal state power supply battery pack 32 may be in a form of taking power from a lithium battery, a dry battery or a power grid, the abnormal state power supply battery pack 32 of one abnormal state power supply module may perform abnormal state power supply for one or more intelligent ammeter bodies 100 within a regional range, and four electric control lifting doors 312 may be controlled to be opened during power supply, so that the efficiency of wireless power supply is higher; the locator 341 collects position data of the wireless power supply receiver 342, and the wireless power supply emission controller 332 controls the universal holder 35 to act, so that the wireless power supply emitter 331 is aligned with the wireless power supply receiver 342 and starts wireless power supply, line connection in an abnormal state is avoided, and the wireless power supply requirement in an extreme abnormal state is guaranteed.
In embodiment 5, the wireless power supply emission controller 332 includes a wireless communication module 3321, a memory 3322, a main control chip 3323 and a positioning receiver 3324, the main control chip 3323 is connected with the power supply switching control module 4 through the wireless communication module 3321 in a wireless communication manner and is connected with the memory 3322 in a communication manner, the positioning receiver 3324 interacts positioning data of the positioner 341 in a wireless communication manner with the positioner 341, and the main control chip 3323 controls the execution actions of the universal holder 35, the wireless power supply emission unit and the four electric control lifting doors 312 respectively.
The wireless communication of the wireless power transmission controller 332 may be implemented using a short range wireless communication technology, such as bluetooth, wireless microwave, zigBee technology, and the like.
In embodiment 6, the wireless communication module 3321 and the positioning receiver 3324 are implemented using UWB wireless communication chips.
Ultra Wideband (UWB) technology is a wireless communication technology that uses a very wide spectrum bandwidth (typically greater than 500 MHz) to transmit data. The transceiving implementation of UWB chips involves a number of aspects including Radio Frequency (RF) front-end, modem, data processing and interface, etc. Short-range positioning and wireless communication can be realized.
In embodiment 7, the power supply switching control module 4 includes a housing, a multi-path logic switch circuit 43 controlled based on wireless signals, a vibration sensor 44, a detection end memory 45, a data analysis chip 46, a control chip 49, a detection end wireless transceiver module 47 and a wireless voltage sensor 48, wherein the housing is fixedly mounted on the inner wall of the housing of the smart meter body 100 through bolts, the vibration sensor 44 is mounted on the inner wall of the housing, vibration data of the housing are detected, and are in communication connection with the detection end memory 45, the main power supply 1, the standby power supply 2 and the abnormal state power supply module are respectively and electrically connected with the power supply input terminal of the smart meter body 100 through the multi-path logic switch circuit 43, the wireless voltage sensor 48 detects the power supply voltage of the circuit board of the smart meter body 100 and is in wireless communication connection with the detection end wireless transceiver module 47, the data analysis chip 46 collects vibration data of the vibration sensor 44, and compares with a set vibration threshold, and if the set vibration threshold is exceeded, the control chip 49 controls the multi-path logic switch circuit 43 to act, so that the main power supply 1, the standby power supply 2 or the abnormal state power supply module is connected into the smart meter body 100.
In embodiment 8, the multiplexing logic switch circuit 43 is a wireless multiplexer switch module.
The multiplexing logic switch circuit 43 may be a wireless multiplexer switch module, and the basic components of the multiplexing logic switch circuit 43 include: an input end: the multiway switching circuit has a plurality of input signals, generally denoted as i_0, i_1, i_2.
And the control end: the control signals (s_0, s_1,) s_m are used to select which input signal is transmitted to the output. The number of control signals m determines the number of input signals that the circuit can select.
And an output end: the output receives the selected input signal.
Switching element: the switching element may be an electromechanical relay, a transistor (e.g., MOSFET), a diode, etc., which is turned on or off depending on the state of the control signal.
The automatic switching between the power supply circuits under the control of the wireless signal can be realized,
Embodiment 9 is a multi-power-source-based smart meter power supply control method, which adopts a multi-power-source-based smart meter to realize multi-power-source power supply control, and comprises the following two abnormal power supply control methods:
In a normal power supply state, the main power supply 1 supplies power to the intelligent ammeter body 100 through the multi-path logic switch circuit 43, when the wireless voltage sensor 48 detects that the power supply voltage of the circuit board is lower than the set voltage threshold, the main power supply 1 is determined to be under-voltage, the control chip 49 wirelessly sends a switching instruction to the multi-path logic switch circuit 43 through the detection end wireless transceiver module 47, and the standby power supply 2 is replaced to supply power to the intelligent ammeter body 100 through the multi-path logic switch circuit 43;
When the standby power supply 2 supplies power for standby, if the data analysis chip 46 analyzes that the vibration data exceeds the set vibration threshold and interacts with the control chip 49, the control chip 49 controls the multi-path logic switch circuit 43 to operate so that the abnormal state power supply battery pack 32 is connected to the smart meter body 100 for supplying power.
In embodiment 10, when the abnormal state power supply battery pack 32 is used to supply power to the smart meter body 100, the control chip 49 wirelessly broadcasts an abnormal state signal to the remote control center 101 through the detection end wireless transceiver module 47.
The detection end wireless transceiver module 47 can access the network of the power grid through wireless communication, so that abnormal state signals are wirelessly broadcast to the remote control center 101, a worker can know the abnormal condition of the intelligent ammeter body 100 at the first time, and the condition can be overhauled on site.
The above embodiments are not intended to limit the scope of the present invention, and therefore: all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.

Claims (8)

1. Smart electric meter based on many powers, its characterized in that: the intelligent electric meter comprises an intelligent electric meter body (100), a main power supply (1), a standby power supply (2), an abnormal state power supply module and a power supply switching control module (4) based on power supply interruption detection, wherein the main power supply (1) is electrically connected with a power supply input terminal of the intelligent electric meter body (100), and the standby power supply (2) is electrically connected with the power supply input terminal of the intelligent electric meter body (100) through the power supply switching control module (4);
the abnormal state power supply component is arranged at a fixed point within a set distance around the intelligent ammeter body (100) and supplies power to the intelligent ammeter body (100) in a wireless power supply mode;
The power supply switching control module (4) detects the power supply state of the intelligent ammeter body (100), and when the detected power supply state is that the main power supply (1) supplies power and the circuit board power supply voltage of the intelligent ammeter body (100) is lower than a set voltage threshold value, the standby power supply (2) is controlled to be switched on with the power supply input terminal of the intelligent ammeter body (100) to perform standby power supply;
the power supply switching control module (4) detects whether the intelligent ammeter body (100) vibrates beyond a set vibration threshold value, and respectively controls the main power supply (1) and the standby power supply (2) to supply power to the intelligent ammeter body (100) after the vibration occurs, if the power supply fails, the abnormal state power supply assembly is subjected to wireless interactive power supply detection abnormal signals, and the abnormal state power supply assembly is controlled to start to supply power to the intelligent ammeter body (100) in a wireless mode;
The abnormal state power supply module comprises a protection box body module (31), a universal cradle head (35), an abnormal state power supply battery pack (32), a wireless power supply transmitting unit and a wireless power supply receiving unit, wherein the protection box body module (31) is detachably arranged at fixed points within a set distance around a smart meter body (100), bases of the abnormal state power supply battery pack (32) and the universal cradle head (35) are respectively and fixedly arranged at the bottom of the inner wall of the protection box body module (31), the wireless power supply transmitting unit comprises a wireless power supply transmitter (331) and a wireless power supply transmitting controller (332) based on a chip, the wireless power supply transmitter (331) is detachably arranged at a rotating part of the universal cradle head (35), the wireless power supply receiving unit comprises a locator (341) and a wireless power supply receiver (342), the wireless power supply receiver (342) and the locator (341) are respectively arranged inside the smart meter body (100) and are electrically connected with a power supply input terminal of the smart meter body (100) through a power supply switching control module (4), the locator (341) is used for collecting the position of the wireless power supply receiver (342), the wireless power supply transmitting controller (332) is detachably arranged at the rotating part of the universal cradle head (35) and is in a wireless power supply receiving state according to the power supply data of the universal cradle head (35) and is in a wireless power supply state, the wireless power supply emission controller (332) is in wireless communication connection with the power supply switching control module (4);
The protection box body assembly (31) comprises a box body frame (311) and four electric control lifting doors (312), four sides of the box body frame (311) are in an opening state, embedded parts are arranged at fixed points in a set distance around the intelligent electric meter body (100), the bottom of the box body frame (311) is detachably arranged at the top of the embedded parts of the intelligent electric meter body (100) through foundation bolts, the four electric control lifting doors (312) are respectively arranged at four sides of the box body frame (311) at openings, and a wireless power supply emission controller (332) is used for respectively controlling lifting of the four electric control lifting doors (312).
2. The multi-power-source based smart meter of claim 1, wherein: the four electric control lifting doors (312) are made of nonmetallic high-strength materials.
3. The multi-power-source based smart meter of claim 1, wherein: the wireless power supply emission controller (332) comprises a wireless communication module (3321), a memory (3322), a main control chip (3323) and a positioning receiver (3324), wherein the main control chip (3323) is in wireless communication connection with the power supply switching control module (4) through the wireless communication module (3321) and is in communication connection with the memory (3322), the positioning receiver (3324) is in wireless communication with the positioning data of the positioning device (341), and the main control chip (3323) respectively controls the universal holder (35), the wireless power supply emission unit and the execution actions of the four electric control lifting doors (312).
4. A multi-power-based smart meter as recited in claim 3, wherein: the wireless communication module (3321) and the positioning receiver (3324) are implemented by using UWB wireless communication chips.
5. The multi-power-source based smart meter of claim 4, wherein: the power supply switching control module (4) comprises a shell, a multiplexing logic switch circuit (43) based on wireless signal control, a vibration sensor (44), a detection end memory (45), a data analysis chip (46), a control chip (49), a detection end wireless transceiver module (47) and a wireless voltage sensor (48), wherein the shell is fixedly arranged on the inner wall of the shell of the intelligent ammeter body (100) through bolts, the vibration sensor (44) is arranged on the inner wall of the shell, vibration data of the shell are detected, the vibration sensor is in communication connection with the detection end memory (45), a main power supply (1), a standby power supply (2) and an abnormal state power supply component are respectively and electrically connected with a power supply input terminal of the intelligent ammeter body (100) through the multiplexing logic switch circuit (43), the wireless voltage sensor (48) detects the power supply voltage of the circuit board of the intelligent ammeter body (100) and is in wireless communication connection with the detection end wireless transceiver module (47), the data analysis chip (46) collects vibration data of the vibration sensor (44) and compares the vibration data with a set vibration threshold, if the set vibration threshold is exceeded, the set vibration threshold is interacted with the control chip (49), the control chip (49) controls the multiplexing logic switch (43) to make the main power supply (43) act in a multiplexing mode, the standby power supply (2) or the abnormal state power supply component is connected to supply power for the intelligent ammeter body (100).
6. The multi-power-source based smart meter of claim 5, wherein: the multiplexing logic switch circuit (43) is a wireless multiplexer switch module.
7. The intelligent ammeter power supply control method based on multiple power supplies is characterized in that: the multi-power-supply-based intelligent ammeter for realizing multi-power supply control according to claim 5 comprises the following two abnormal power supply control methods:
The main power supply (1) supplies power to the intelligent ammeter body (100) through the multi-path logic switch circuit (43) in a normal power supply state, when the wireless voltage sensor (48) detects that the power supply voltage of the circuit board is lower than a set voltage threshold value, the main power supply (1) is considered to be under-voltage, the control chip (49) wirelessly transmits a switching instruction to the multi-path logic switch circuit (43) through the detection end wireless transceiver module (47), and the standby power supply (2) is replaced to supply power to the intelligent ammeter body (100) through the multi-path logic switch circuit (43);
When the standby power supply (2) supplies power for standby, if the data analysis chip (46) analyzes that the vibration data exceeds the set vibration threshold value and interacts with the control chip (49), the control chip (49) controls the multi-path logic switch circuit (43) to act so that the abnormal state power supply battery pack (32) is connected to supply power for the intelligent ammeter body (100).
8. The multi-power-source-based smart meter power control method of claim 7, wherein: when the abnormal state power supply battery pack (32) is used for supplying power to the intelligent ammeter body (100), the control chip (49) wirelessly broadcasts an abnormal state signal to the remote control center (101) through the detection end wireless transceiver module (47).
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CN106157594A (en) * 2016-08-12 2016-11-23 北京溢美四方软件技术有限公司 The intelligent electric meter communication unit of a kind of built-in stand-by power supply and control method
CN108711949A (en) * 2018-05-24 2018-10-26 闵应昌 Intelligent wireless power charging system
CN110794188A (en) * 2019-11-14 2020-02-14 浙江晨泰科技股份有限公司 Anti-theft ammeter
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