1604results about "Time integral measurement" patented technology

The invention discloses a three-phase intelligent multifunctional electric energy meter, which relates to the technical field of electric meters and comprises an electric meter body, a communication module, a battery body, a first limiting mechanism and a second limiting mechanism. The first limiting mechanism stops the battery body from entering the battery bin when the communication module is not installed in place, and guides the communication module to be installed firstly; and after the communication module is installed, the blocking to the battery compartment is automatically relieved, so that the battery body can be installed smoothly. The second limiting mechanism limits disassembly of the communication module when the battery body is not disassembled, the battery body is guided to be disassembled firstly and then the communication module is disassembled, the communication module is prevented from being mistakenly disassembled in a power-on or power-off state, and therefore the problems of power-off, hot plugging or electrical breakdown and the like of the communication module caused by misoperation can be avoided; and the reliability and the safety in the maintenance process of the electric energy meter are improved.

According to the grid-connected line electric energy quality on-line detection device, the system comprises a broadband sensing module which is deployed on a grid-connected line to form an original analog signal; the conditioning module forms a standardized digital sampling signal; the edge calculation module receives the standardized digital sampling signal, analyzes a voltage effective value, a harmonic distortion rate, a sag depth and an event duration index in real time through a parallel calculation architecture, and forms an electric energy quality characteristic data set; the intelligent analysis module receives the electric energy quality characteristic data set to form an abnormal event report; and the communication interaction module receives the abnormal event report, encapsulates the abnormal event report into a standardized data frame through a configurable protocol stack, synchronously pushes the standardized data frame to the local monitoring terminal and the cloud management platform, receives an external control instruction and feeds back the external control instruction to the intelligent analysis module to optimize an analysis strategy. The grid-connected line electric energy quality on-line detection device can solve the problem that complex disturbance cannot be recognized in real time and cannot be accurately traced to the source.

The invention relates to the technical field of electric energy meters, and provides a temperature-controllable electric energy meter and method, a box body is internally provided with a positive-pressure heat dissipation mechanism, the positive-pressure heat dissipation mechanism comprises an air inlet pipe, the air inlet pipe is arranged in the box body and located below an electric energy metering module, one end of the air inlet pipe is closed, and the other end of the air inlet pipe penetrates through the side wall of the box body and is communicated with the outside; the mounting box covers the air inlet pipe, a plurality of cooling fans are arranged in the mounting box, and the cooling fans are used for sucking air flow in the air inlet pipe and discharging the air flow through the air outlet; the shielding part is arranged at the top of the box body and used for blocking the exhaust port, the shielding part is used for forming a positive pressure environment in the box body, and the shielding part can be opened when the internal pressure of the box body is larger than preset pressure so that gas in the box body can be exhausted through the exhaust port. Through cooperation of the positive pressure heat dissipation mechanism and the shielding piece, a dynamic positive pressure environment is constructed in the box body, external dusty air can be prevented from invading through gaps or heat dissipation holes from the source, and the problem of dust accumulation caused by heat dissipation of a traditional electric energy meter is thoroughly solved.

The invention discloses an electricity stealing detection method and device for a low-voltage distribution network, an intelligent electric energy meter, equipment and a medium, and the method comprises the steps: collecting the electricity utilization information and internal temperature state data of a detected electric energy meter in real time, and respectively generating corresponding real-time electricity utilization load change trend data and temperature change trend data; detecting each electric device loaded by the detected electric energy meter, and identifying the type of each electric device; predicting the electrical load of the tested electric energy meter according to the identified type of each electric device; according to the predicted electrical load of the tested electric energy meter, generating corresponding predicted electrical load change trend data; and according to the real-time electrical load change trend data, the real-time temperature change trend data and the predicted electrical load change trend data in the same time period, judging whether the detected electric energy meter has an electricity stealing behavior or not. According to the invention, the electricity larceny behavior in the low-voltage power distribution network can be quickly and accurately identified, the electricity larceny position is accurately positioned, and electricity larceny prevention is effectively realized.

The invention relates to an anti-magnetic interference intelligent electric energy metering box, and relates to the technical field of electric energy metering boxes, the anti-magnetic interference intelligent electric energy metering box comprises a meter box main body and a shielding assembly, the shielding assembly comprises a shielding box for installing the meter box main body, and a shielding cover detachably installed at the front side of the shielding box; heat dissipation openings are formed in the middle parts of the left and right vertical side surfaces of the shielding box, wiring openings are formed in the lower parts of the left and right vertical side surfaces of the shielding box, and shielding nets are fixedly arranged on the inner walls of the heat dissipation openings; protection plates are rotationally connected to the edges, close to the back side, of the left and right side surfaces of the shielding box, and a plurality of fixing holes are formed in the protection plates; limiting plates are fixedly arranged on the top faces of the two protection plates in the horizontal direction, and a locking piece is arranged on the top face of the shielding box. During carrying, the protection plates are rotated to be in a protection state of being attached to the left side face and the right side face of the shielding box, at the moment, the protection plates can play a role in protecting the shielding nets at the heat dissipation openings, and the shielding performance of the electric meter box is guaranteed.

The invention relates to a single-phase load identification intelligent ammeter, which relates to the technical field of ammeters, and comprises an ammeter body, a terminal cover and a fixing piece, the ammeter body is provided with a wiring area, a display area and a drainage channel penetrating through two sides of the ammeter body, and the terminal cover is hinged on the ammeter body and covers the wiring area and the drainage channel. The fixing member is used for detachably fixing the terminal cover on the ammeter body. The plugging part is arranged on the terminal cover, the plugging groove is arranged in the wiring area, the fixing piece is taken down from the plugging part to form an air guide flow channel between the plugging part and the wiring area, and the air guide flow channel is communicated with the drainage channel. Air is supplied to the plugging part through external air supply equipment, dust removal air can be blown into the wiring area along the air guide flow channel and is discharged through the drainage channel, dust in the wiring area can be cleaned under the condition that the terminal cover is not opened, the dust removal efficiency is improved, and the maintenance risk is reduced.

The invention belongs to the technical field of electric energy meters, and particularly relates to a single-phase electric energy meter with a magnetic ring compensation structure. The device comprises a gap magnetic ring modeling unit, a compensation coil current setting unit, a driving voltage real-time generation unit and a pulse output unit, the notched magnetic ring modeling unit is used for calculating corresponding uncompensated magnetic flux based on the magnetic conductivity after temperature correction; the compensation coil current setting unit is used for forming a compensation coil current setting value; the driving voltage real-time generation unit is used for injecting bidirectional current matched with a compensation coil current set value into the compensation coil; the pulse output unit is used for triggering metering pulse output; the method has the beneficial effects of high precision, high stability, low power consumption and high robustness.

The invention discloses a connector for an electric meter box and the related electric meter box, and relates to the technical field of electric meter boxes. The device comprises a base, the front end of the base is fixedly connected with a protection plate, and the inner side of the protection plate is provided with a turnover insertion mechanism; the turnover plugging mechanism comprises a turnover plate and a fixed plate, the front end of the turnover plate is fixedly connected with a turnover seat, the top of the turnover seat penetrates through and is fixedly connected with a connecting column, and the bottom of the connecting column penetrates through and is fixedly connected with a wire. According to the invention, through the arrangement of the turnover plugging mechanism, the turnover plate can be turned over to drive the turnover seat to turn over by a certain angle when the electric meter box main body is mounted or dismounted, so that the electric meter box main body can be conveniently mounted and dismounted; and after the electric meter box main body is installed, an effect of stabilizing and limiting the overturning plate and the overturning seat can be achieved through cooperation of components such as an inserting column, an inserting groove and an arc-shaped block, and the stability of the electric meter box main body during working is ensured.

A meter socket adapter (MSA) for connecting a battery energy storage system (BESS) to a household microgrid through a meter combo load center. The MSA includes: a housing matching an electricity meter and a meter socket in the meter combo load center; a plurality of power conductors that connect among the electricity meter, the meter socket, and BESS; a meter interconnection device (MID) switch for connecting a utility grid or one or more distribution energy resource (DER) devices to supply power to household loads in the household microgrid; a MID driving circuit for driving the MID switch to close or open; and a thermal management circuit couple with a plurality of temperature sensors disposed at each high current connection point to prevent overheat.

The invention relates to the technical field of electric energy meters, in particular to a novel split type single-phase intelligent electric energy meter applying new energy battery testing, which comprises a main shell assembly, a mounting base is fixedly connected to the upper end of the main shell assembly, a buffer mechanism is arranged at one end of the base, the buffer mechanism comprises a rotating shaft, and an extrusion block is eccentrically connected to the surface of the rotating shaft assembly. An extrusion block is arranged in the base, a containing cavity used for containing a cable connector is constructed in the extrusion block, a fixing mechanism is arranged in the extrusion block and comprises an annular air bag, a tightening mechanism is arranged at one end of the extrusion block, a second sleeve is fixedly connected to the surface of the base, and the second sleeve limits the position of a cable at the same time; when the cable is pulled, the extrusion block drives the rotating shaft to compress the torsional spring for buffering, the rotating shaft rotates and inflates the annular air bag to clamp and tighten the cable joint, and the extrusion block eccentrically rotates and is matched with the sleeve to further fix one end, far away from the joint, of the cable.

The invention relates to the technical field of electric energy meters, in particular to a device convenient for replacing an electric energy meter, which comprises a fixed seat, an electric energy meter sleeve is fixedly arranged outside the top end of the fixed seat, and the electric energy meter sleeve, a screwing assembly and a driving assembly are arranged and mutually linked and matched to operate. Therefore, when the electric energy meter is replaced or installed, only the direction of rotating the auxiliary handle needs to be controlled, so that a plurality of screw binding posts can be synchronously unscrewed or screwed, an operator does not need to screw or unscrew the screw binding posts one by one by using a screwdriver, the overall operation is convenient, and the working efficiency is improved. When the screwing assembly operates, the limiting assembly is driven to operate synchronously to be opened or closed, after the screw binding post is unscrewed synchronously, the wire core and the internal wiring hole of the electric energy meter are not limited, meanwhile, the limiting assembly operates to be opened, and the top and the side edge of the sleeve of the electric energy meter are opened. At the moment, the electric energy meter in the electric energy meter sleeve can be directly taken out for replacement, and overall replacement is convenient.

The invention provides a metering box state detection and customer electricity utilization information collaborative electricity larceny prevention method, and relates to the technical field of electricity larceny prevention, and the method comprises the following steps: a physical sensor and an electrical sensor are deployed in a metering box and an electricity utilization loop, the physical sensor is used for collecting the state data of the metering box, and the electrical sensor is used for collecting customer electricity utilization information; data of the physical sensor and the electrical sensor are collected in real time, and the collected data are preprocessed and then transmitted to the cloud platform; the cloud platform performs physical anomaly identification on the state data of the metering box and performs electricity consumption anomaly identification on the electricity consumption information of the client; through multiple deployment of the physical sensor and the electrical sensor, the risk that a single sensor is deceived is avoided, through a cooperative verification mechanism of metering box state-electricity utilization information, box opening non-electricity stealing and box-immovable electricity stealing can be effectively distinguished, and through actual verification, the misjudgment rate is greatly reduced, and the missing report rate is controlled within 5%.

The invention discloses an electric energy metering method of a high-voltage electric energy meter. The electric energy metering method comprises the following steps that a main meter and an auxiliary meter are powered on and initialized; the main meter operates the first metering module and sends a communication handshake signal to the auxiliary meter, and the auxiliary meter operates the second metering module and responds to the communication handshake signal sent by the main meter to establish a communication link; the main meter and the auxiliary meter respectively read register values of the first metering module and the second metering module, and calculate an A-phase electric parameter and a C-phase electric parameter; the main meter acquires a C-phase electric parameter from the auxiliary meter regularly, and calculates a combined-phase electric parameter according to the A-phase electric parameter and the C-phase electric parameter; the main meter sequentially writes the combined-phase register value and the A-phase register value into a first metering module, and calculates combined-phase electric quantity and A-phase electric quantity according to the combined-phase register value and the A-phase register value respectively; and the auxiliary meter synchronously writes the C-phase register value into the second metering module and calculates the C-phase electric quantity according to the C-phase register value. According to the invention, the technical problem of how to optimize the existing high-voltage electric energy meter and realize high-precision measurement and metering of three-phase electric parameters of a high-voltage power grid is solved.

The utility model relates to the field of electric power equipment, in particular to a rapid uninterruptible meter changing device, which comprises a bottom support, a connecting seat, a binding post, an on-off structure, a button, a top pipe and a spring short-circuit group, the connecting seat is fixed on the bottom support, the connecting post is arranged in the connecting seat, and the spring short-circuit group is arranged in the connecting seat and positioned on one side of the binding post. The button is slidably arranged on the front end face of the connecting base, the elastic sliding rod is connected to the inner end of the button, the top piece and the push piece are rotatably arranged in the connecting base, the lower end of the top piece is connected with the elastic sliding rod through gear meshing, and the lower end of the push piece is in contact with the upper end of the top piece through an arc surface; the two sides of the lower end of the connecting rod are rotationally connected with the elastic sliding rod and the connecting base, the upper end of the connecting rod is rotationally connected with the ejector rod, the ejector rod is arranged in the ejector pipe in a sliding mode, the ejector pipe is arranged on the upper end face of the connecting base in a sliding mode, more labor is saved in replacement, and work efficiency is improved.

The invention relates to the technical field of electric meters, in particular to an internet of things intelligent electric meter supporting edge computing, which comprises an intelligent electric meter shell and a circuit board arranged in the intelligent electric meter shell, and further comprises an elastic mounting system which comprises a plurality of clamping seats fixed on the inner wall of the intelligent electric meter shell and a plurality of clamping heads fixed on the edge of the circuit board, a bidirectional buffer mechanism is arranged between the clamping head and the clamping seat, the bidirectional buffer mechanism allows the circuit board to perform multi-degree-of-freedom micro motion in a vibration environment so as to buffer impact, the heat exchange and dehumidification system comprises a heat conduction copper rod penetrating through the clamping seat, one end of the heat conduction copper rod is thermally connected with the bidirectional buffer mechanism, and the other end of the heat conduction copper rod is provided with heat dissipation fins. The heat conduction copper rod is sleeved with a moisture absorption filter element and a breathing heat dissipation system, the breathing heat dissipation system comprises a breathing air shell fixed in the intelligent electric meter shell, a suction groove is formed in the breathing air shell, an intermittent air exchange mechanism is arranged in the breathing air shell, and the air exchange mechanism can periodically suck external cooling air into the shell and then discharge the air out of the shell to blow the circuit board.

A meter socket adapter (MSA) for connecting a battery energy storage system (BESS) to a household microgrid through a meter combo load center. The MSA includes: a housing matching an electricity meter and a meter socket in the meter combo load center; a plurality of power conductors that connect among the electricity meter, the meter socket, and BESS; a meter interconnection device (MID) switch for connecting a utility grid or one or more distribution energy resource (DER) devices to supply power to household loads in the household microgrid; a MID driving circuit for driving the MID switch to close or open; and a MID connection detection circuit to verify an electrical connection of a closed MID switch.

The invention discloses an online monitoring and positioning device and method for an electricity stealing point of a buried cable line, and belongs to the technical field of daily operation and maintenance of underground cables commonly used in a power distribution network. The on-line monitoring and positioning method comprises the following steps: connecting a cable line with the on-line monitoring and positioning device, collecting and processing a feedback signal, and positioning an electricity stealing position. The online monitoring and positioning device comprises a controller, a host, a sine carrier module, a pulse width modulation module, a multiplier, an incident terminal, an incident signal coupler, a detection reference module, a feedback processing module, a mathematical calculation module, a receiving terminal and a receiving signal coupler. According to the method, the problem of electricity stealing in the line can be reflected more accurately and quickly, the position of the electricity stealing point can be judged more accurately and quickly in an iteration and comparison mode, accurate searching of the electricity stealing point of the buried cable line in practice is facilitated, and manual operation time and workload are reduced.

The invention relates to a single-phase intelligent electric energy meter, which relates to the technical field of electric meters, and comprises an electric meter body with a wiring area and a data storage area, a communication module detachably mounted in the data storage area, and a wiring terminal group arranged in the wiring area, the first cover plate and the second cover plate respectively cover the data storage area and the wiring area. And the first cover plate and the second cover plate are detachably connected with the electric meter body through the first fixing piece and the second fixing piece respectively. The linkage relation between the first fixing piece and the second fixing piece is established on the structure, so that the second fixing piece is locked when the first cover plate is in the covering state, and the second fixing piece is unlocked after the first cover plate is taken away and rotated to the maximum opening and closing position. According to the structure, a mechanical linkage principle is utilized to restrain a dismounting sequence, and an operator is guided to dismount the communication module and then dismount the wiring terminal group to a certain extent, so that the risk of adverse effects of misoperation on the stability of communication data can be reduced.

The utility model discloses a metering box convenient to mount and dismount, which comprises a box body and a back plate, a fixing plate and a mounting plate are arranged on the rear side of the back plate, fixing strips are arranged on the two sides of the fixing plate, fixing holes are formed in the fixing strips, a mounting seat is arranged on the mounting plate, a fixing groove and a mounting groove are formed in the mounting seat, and the fixing plate and the mounting plate are arranged on the back plate. The fixing groove is provided with a notch for the fixing strip to be inserted in a matched mode, a fixing head with the end inserted into the fixing groove is elastically connected into the mounting groove, and in the process that the fixing strip is inserted into the fixing groove in a matched mode, the fixing head is abutted by the fixing strip to move into the mounting groove. And then the fixing head is elastically reset and inserted into the fixing hole in a matched mode to limit horizontal movement of the fixing strip, at the moment, the bottom of the fixing head is abutted against the mounting base, and the fixing strip can freely move upwards and be separated from the fixing groove. The beneficial effects of the utility model are that the box body can be mounted and dismounted without dismounting other components in the box body, which is more convenient.

The invention discloses a high-frequency and power-frequency data processing method and system of a double-core electric energy meter and the electric energy meter, and belongs to the field of electric power systems.The method comprises the steps that the double-core electric energy meter comprises a metering unit and a management unit, the metering unit obtains a first power-frequency analog signal through a first processing link, and the management unit obtains a second power-frequency analog signal through a second processing link; a first power frequency digital signal is obtained through filtering, analog-to-digital conversion and numerical calculation, a first high-frequency current analog signal is obtained through a second processing link, a second high-frequency current analog signal is obtained through filtering, the two kinds of signals are transmitted to a management unit through analog and digital signal channels respectively, and time alignment is carried out based on a time synchronization method. Therefore, by means of the electric energy meter, the problems that in the prior art, the sensing frequency band of an electric energy meter is narrow, and the legal function and illegal function coupling degree is high can be solved.

The invention discloses an electric energy metering module which comprises a first shell, a second shell, a mutual inductor, a wire pressing frame assembly, a copper bar, a temperature sensor and a circuit board. A wire pressing frame assembly groove is formed in the first shell, and the wire pressing frame assembly is arranged in the wire pressing frame assembly groove; a mutual inductor groove is formed in the front side of the wire pressing frame assembly groove in the first shell, and a mutual inductor is arranged in the mutual inductor groove. A copper bar groove is formed in the center of the mutual inductor groove, the copper bar groove is communicated with the wire pressing frame assembly groove, and a copper bar extends into the wire pressing frame assembly groove through the copper bar groove and is placed in the wire pressing frame assembly; circuit board grooves are formed in the two side walls of the first shell, and the circuit board is inserted through the circuit board grooves; a gap is arranged below the copper bar groove, and the temperature sensor is arranged at the gap. The mutual inductor, the copper bar and the temperature sensor are all connected with the circuit board to collect a current signal, a voltage signal and a temperature signal; copper bar holes are formed in the second shell in a penetrating mode, and when the second shell is installed on the first shell, the copper bars penetrate out of the copper bar holes respectively.

The invention provides an electricity larceny evidence obtaining method and device based on a storage type mutual inductor, and relates to the technical field of electricity larceny prevention of an electric power system. The method comprises the following steps: acquiring a first path of data and a second path of data of a target voltage level line at a target moment; taking a difference value between the second accumulated electric quantity and the first accumulated electric quantity as a real-time electric quantity deviation; calculating an electric quantity deviation threshold by using the first path of data and the second path of data; and according to the real-time electric quantity deviation and an electric quantity deviation threshold value, judging whether an electricity stealing behavior occurs in the target voltage level line at the target moment, and obtaining evidence of the electricity stealing behavior when the electricity stealing behavior occurs in the target voltage level line at the target moment. According to the invention, the accuracy of electricity larceny detection can be improved, and the possibility of false alarm and missing alarm is reduced.

The invention discloses an uninterruptible power meter changing metering box and an electric meter changing method thereof, and the uninterruptible power meter changing metering box comprises a box body, a wiring device and a short circuit device. An electric meter position is arranged in the box body; the wiring device comprises an electricity meter connecting terminal which is arranged in the electricity meter position and used for installing an electricity meter. The electricity meter connecting terminal comprises a plurality of expansion terminals. The short-circuit device comprises a driving assembly mounted on the box body, and a short-circuit assembly and an expansion assembly which are connected with the driving assembly, the driving assembly is used for being driven to a first driving state or a second driving state, the first driving state of the driving assembly is used for driving the short-circuit assembly to short-circuit the expansion terminals with the same phase, and the second driving state of the driving assembly is used for driving the expansion terminals with the same phase; meanwhile, the expansion assembly is driven to drive the expansion terminal to contract; the second driving state of the driving assembly is used for driving the short-circuit assembly to break away from the expansion terminal and driving the expansion assembly to drive the expansion terminal to open. According to the metering box capable of replacing the meter without power failure, the electric meter can be rapidly replaced in a non-power-failure state, and misoperation is avoided.

The invention discloses an electrical carbon measuring instrument and method, and belongs to the field of electrical carbon meters, the electrical carbon measuring instrument comprises an electrical carbon meter main body, an interface protection shell is fixedly mounted at the bottom end of the electrical carbon meter main body, and a sealing part for sealing is mounted in the interface protection shell; a plurality of interface parts used for being connected with external wires are installed in the interface protection shell, a plurality of arc extinguishing parts corresponding to the interface parts are arranged outside the interface protection shell, the interface parts penetrate through the sealing parts to be connected with the arc extinguishing parts, and the arc extinguishing parts are used for preventing electric arcs from being generated between the wires and the interface protection shell. According to the scheme, through the arrangement of the interface part, the interface of the electric carbon meter can be flexibly moved, a wire does not need to be bent even if the electric carbon meter faces a plurality of interfaces, the electric carbon meter can be flexibly moved according to the space and the wire inlet position, the wire can be better protected, and the service life of the electric carbon meter is prolonged. And wire arrangement can be well carried out even in a narrow space.

The invention relates to the technical field of electric energy metering boxes, in particular to a heat dissipation type electric energy metering box which comprises a metering box body and a fixing frame arranged on the rear side of the metering box body. The fixing assembly is used for fixing the metering box body to the fixing frame; the metering box body is pre-lifted through the two sets of supporting plates, due to the weight of the metering box body, a first air bag is downwards extruded, an insertion rod extends out, meanwhile, when the supporting plates drive the metering box body to move downwards, a trigger block is extruded, a fourth air bag is extruded, air is exhausted into a fifth air bag through a third exhaust pipeline, a push rod is pushed to move downwards, and the metering box body moves downwards. When a push rod moves to be flush with a groove, a check block is pulled backwards by a sixth reset spring, at the moment, an exhaust hole coincides with a fourth storage groove, air in a third air bag is exhausted into a second air storage cavity through the fourth storage groove under the abutting action of an insertion rod, at the moment, the insertion rod is inserted into one set of through holes, and limiting of a supporting plate is completed.

The invention relates to an intelligent electric energy meter with an overload protection function, and relates to the technical field of electrical engineering, a protection mechanism of the intelligent electric energy meter enables a cylinder to leak air through bending of a bimetallic strip to drive a main piston to move, and then an auxiliary electric sheet is driven to move to release connection with a main electric sheet to achieve overload protection. The cylinder can leak air only by slightly bending the bimetallic strip to drive the sealing plate to slightly rise, so that the mechanism can obviously shorten the time from overload to power-off protection, thereby shortening the self overload time of the integrated chip during overload, prolonging the service life of the integrated chip and improving the reliability of the integrated chip. The two extrusion plates in the reinforcing mechanism are utilized to extrude the main electric sheet and the auxiliary electric sheet, even if the two contacts cannot be in complete contact due to deformation, the two contacts can be close to each other by extruding the main electric sheet and the auxiliary electric sheet until the two contacts are in complete contact, so that the circuit can be completely closed, and meanwhile, the safety of the circuit is improved. And fire disasters caused by high-temperature burnout of the electric meter due to incomplete contact of the contacts can be avoided.

The utility model discloses an electric energy meter data acquisition unit, which relates to the field of data acquisition, and is provided with an equipment interface, a communication interface, a communication module, an MCU (Microprogrammed Control Unit), an antenna and a first DCDC (Direct Current to Direct Current) module, the antenna is arranged near the electric energy meter through the coaxial line, the antenna is arranged near the electric energy meter through the coaxial line, the first DCDC module reduces the first voltage into the second voltage and then supplies power to the communication module, the equipment interface transmits data to the MCU through the communication interface, and after the communication module is powered on and the MCU receives the data, the MCU communicates with the electric energy meter through the communication module and the antenna. The influence of the MCU in the electric energy meter data collector on the antenna is greatly reduced, an iron plate does not need to be arranged like a sucker antenna, the appearance is low, and the possibility of being damaged is reduced.

The invention discloses a temperature drift compensation method for an intelligent electric meter, and the method carries out the gradual optimization according to levels: constructing a basic temperature drift compensation model at the first layer, and preliminarily offsetting the influence of temperature on the measurement precision; in the second layer, a temperature change rate item is introduced into a compensation formula, the temperature change rate is calculated through a weighted sliding window algorithm, and an instantaneous metering error caused by local instantaneous temperature rise caused by sudden load change is compensated; in the third layer, temperature sensors are independently arranged in a high-heat area (a metering chip) and a low-temperature area (a current transformer) in the ammeter respectively, and a corresponding temperature drift compensation model is established based on temperature data of each area to adapt to the temperature difference of the areas; and the fourth layer respectively constructs deep learning networks for the high-heat area and the low-temperature area, inputs the temperature time sequence data of each area, the operation duration of the electricity meter and the environment temperature into the corresponding networks, and outputs model updating parameters to realize the dynamic updating of the model. According to the invention, the metering precision of the intelligent electric meter in steady and dynamic working conditions and long-term operation can be obviously improved.

A measuring device for has a housing, a measuring circuit board, and a communication circuit board. The measuring circuit board has a voltage connection, a voltage divider, a CT connection for connecting an external current transformer, a measuring chip connected to the voltage divider and the CT connection for determining electrical quantities and outputting as measurement data to a first part of a plug connector. The communication circuit board is connected to a second part of the plug connector, which together with the first part connects the communication circuit board and the measuring circuit board, a data communication chip connected to the second part and electrically isolated to receive the measurement data from the measuring chip, where a galvanic isolation between the measuring chip and the data communication chip is provided on the communication circuit board, a data connection connected to the data communication chip and a user interface.

The utility model relates to the technical field of electric energy meter bases, in particular to a single-phase intelligent electric energy meter base. According to the technical scheme, the device comprises a bottom plate, a fixing frame is fixedly arranged on one side of the bottom plate, and a plurality of first through holes are formed in the bottom of the fixing frame; the fixing plate is arranged between the fixing frames, a plurality of second through holes are formed in the fixing plate, connecting terminals are movably sleeved with the second through holes, and one end of each connecting terminal is fixedly connected with a wire terminal; the fixing block is located between the fixing frames, a plurality of grooves are formed in one side of the fixing block, two sets of sliding grooves are formed in the inner wall of each groove, and sliding blocks are arranged in the sliding grooves in a sliding mode. According to the utility model, the connection terminals can be rapidly adjusted according to the connection of different types of electric energy meters, the adaptation to different types of electric energy meters is realized, the connection steps are simplified, the installation convenience and efficiency are improved, the application range is expanded, the diversified requirements are met, and the overall performance and the use flexibility of the electric energy meters are improved.