Device for replacing electricity meter without power failure

Abstract

The invention discloses a device for replacing an ammeter without power failure, which comprises a switching module, a metering module and a control module, and is characterized in that the control signal input end of the switching module is electrically connected with the first control signal output end of the control module in a plugging manner, and the first power supply connecting end of the switching module is electrically connected with the power supply connecting end of the ammeter to be replaced; the second power supply connecting end of the switching module is electrically connected with the power supply connecting end of the metering module in a plugging manner; the electric quantity output end of the metering module is electrically connected with the electric quantity input end of the control module; the switching module is used for switching a connecting line where the to-be-replaced ammeter is located and a connecting line where the metering module is located, the metering module is used for temporarily metering the electric quantity when the to-be-replaced ammeter is replaced, and the control module is used for fusing the temporarily-metered electric quantity and user electric quantity information. And sending the fused electric quantity information to the new electric meter. According to the invention, seamless switching of lines can be achieved, and electricity meter replacement and electric quantity metering can be carried out under the condition of uninterruptible power supply.

Description

Technical Field

[0001] The invention belongs to the technical field of electric meters, and in particular relates to a device for replacing an electric meter without power failure. Background Art

[0002] Traditionally, replacing electric meters requires power outages, which interrupts the user's normal power supply, causing great inconvenience to the user's production and life, and also affects the service quality and benefits of power supply companies. With the continuous growth of power demand and the increasing requirements of users for power supply reliability, the technology of replacing electric meters without power outages has become a key issue in the power industry.

[0003] The existing device for replacing an electric meter without power outage is that a fixing plate, a conductive block, a conductive spring, a placement slot and a driving part are arranged in the meter box, the conductive block is arranged in the placement slot, the conductive spring is arranged on the side of the placement slot, and the driving part includes an inner cavity, a rotating column, a gear, a rectangular block, a screw, a spring, a connecting rod and a push rod, etc. When the rotating column rotates, the screw will gradually enter the screw hole, and at the same time, it will drive the two connecting rods to move relative to each other, thereby driving the push rod to apply pressure to the conductive block to move in the direction of the conductive spring, and finally make the conductive block contact with the conductive spring, and the conductive spring is respectively connected to the household inlet and the household outlet of the temporary meter, so that the temporary meter can measure the electricity during the removal of the first meter.

[0004] However, since the driving component includes many parts and the mechanical structure is relatively complex, failures may occur. For example, the connection of the screw rod gradually entering the screw hole is unstable, and the conductive block and the conductive spring are easily separated after long-term use, and the temporary meter cannot be powered. Therefore, a device with stable connection and no power interruption is needed to replace the meter. Summary of the invention

[0005] In view of this, the present invention provides a device for replacing an electric meter without power failure, the main purpose of which is to solve the problem that the conductive block and the conductive spring piece are easily separated after long-term use in the existing device for replacing an electric meter without power failure, and cannot provide power for the electric meter for temporary measurement.

[0006] In order to solve the above problems, the present application provides a device for replacing an electric meter without power failure, comprising: a switching module, a metering module, a control module and a communication module, wherein: The control signal input end of the switching module is electrically connected to the first control signal output end of the control module in a plug-in manner, the power input end of the switching module is electrically connected to the AC power supply, and the first power connection end of the switching module is electrically connected to the power connection end of the electric meter to be replaced; the second power connection end of the switching module is electrically connected to the power connection end of the metering module in a plug-in manner, and the output end of the switching module is electrically connected to the service line; the power output end of the metering module is electrically connected to the power input end of the control module, the data communication end of the control module is electrically connected to the first data communication end of the communication module, and the second data communication end of the communication module is electrically connected to the data communication end of the electric meter to be replaced, wherein the switching module includes a first sub-switching unit and a second sub-switching unit, the first sub-switching unit includes a first relay and a first group of connectors, and the second sub-switching unit includes a second relay, a second group of connectors, and a third group of connectors; The switching module is used to switch the connection line where the meter to be replaced is located and the connection line where the metering module is located according to the control signal output by the control module when replacing the meter to be replaced, so that during the replacement of the meter, the connection line where the meter to be replaced is disconnected, and the connection line where the metering module is connected; the metering module is used to temporarily measure the electricity when replacing the meter to be replaced, and transmit the temporarily measured electricity to the control module; the communication module is used to transmit the user electricity information and the user meter address of the meter to be replaced to the control module; the control module is used to merge the temporarily measured electricity with the user electricity information, so that after the meter is replaced, the merged user electricity information and the user meter address are sent to the new meter.

[0007] In one embodiment of the present invention, optionally, the control signal input terminal of the first sub-switching unit is electrically connected to the first control signal output terminal of the control module in a plug-in manner, the first power input terminal of the first sub-switching unit is electrically connected to the AC power supply, the second power output terminal of the first sub-switching unit is electrically connected to the input terminal of the electric meter to be replaced, the household input terminal of the first sub-switching unit is electrically connected to the output terminal of the electric meter to be replaced, and the household output terminal of the first sub-switching unit is electrically connected to the household line; the second power input terminal of the first sub-switching unit is electrically connected to the AC power supply, and the second power output terminal of the first sub-switching unit is electrically connected to the control terminal of the second sub-switching unit and the power input terminal of the second sub-switching unit, respectively; The power output end of the second sub-switching unit is electrically connected to the input end of the metering module in a plug-in manner, the house input end of the second sub-switching unit is electrically connected to the power output end of the metering module in a plug-in manner, and the house output end of the second sub-switching unit is electrically connected to the house line.

[0008] In one embodiment of the present invention, optionally, the first group of connectors is electrically connected to the first control signal output end of the control module in a plug-in manner, the first group of connectors is also electrically connected to the coil of the first relay, the first end of the first normally closed contact of the first relay is electrically connected to the AC power supply, the second end of the first normally closed contact of the first relay is electrically connected to the input end of the meter to be replaced, the first end of the second normally closed contact of the first relay is electrically connected to the output end of the meter to be replaced, the second end of the second normally closed contact of the first relay is electrically connected to the service line, the first end of the normally open contact of the first relay is electrically connected to the AC power supply, and the second end of the normally open contact of the first relay is electrically connected to the control end of the second sub-switching unit and the power input end of the second sub-switching unit, respectively.

[0009] In one embodiment of the present invention, optionally, the coil of the second relay is electrically connected to the second end of the normally open contact of the first relay and the second group of connectors, respectively; the second group of connectors is also electrically connected to the input end of the metering module in a plug-in manner; the third group of connectors is electrically connected to the output end of the metering module in a plug-in manner; the third group of connectors is also electrically connected to the first end of the normally open contact of the second relay; and the second end of the normally open contact of the second relay is electrically connected to the service line.

[0010] In one embodiment of the present invention, optionally, the device for replacing an electric meter without power failure also includes a leakage protector, an input end of the leakage protector is electrically connected to the second end of the normally open contact of the first relay, and an output end of the leakage protector is electrically connected to the second group of connectors.

[0011] In one embodiment of the present invention, optionally, the metering module includes a power supply unit, a voltage detection unit, a current detection unit and an electric quantity metering chip, wherein: The input end of the power supply unit is electrically connected to the second group of connectors in a plug-in manner, the output end of the power supply unit is electrically connected to the input end of the voltage detection unit and the input end of the current detection unit respectively, the output end of the voltage detection unit is electrically connected to the voltage input end of the power metering chip, the output end of the current detection unit is electrically connected to the current input end of the power metering chip, and the power output end of the power metering chip is electrically connected to the power input end of the control module; the output end of the power supply unit is electrically connected to the third group of connectors in a plug-in manner.

[0012] In one embodiment of the present invention, optionally, the device for replacing an electric meter without power failure further includes: an interaction module, wherein the data input and output ends of the interaction module are electrically connected to the data input and output ends of the control module, and the interaction module is used to receive control instructions from the user and transmit the received control instructions to the control module, so that the control module sends a control signal to the switching module according to the received control instructions.

[0013] In one embodiment of the present invention, optionally, the device for replacing an electric meter without power failure further comprises: a battery power module, wherein a power output end of the battery power module is electrically connected to a power end of the control module and a power end of the communication module.

[0014] In one embodiment of the present invention, optionally, the device for replacing the electric meter without power failure also includes: a third relay and a fourth group of connectors, the fourth group of connectors is electrically connected to the second control signal output end of the control module in a plug-in manner, the fourth group of connectors is also electrically connected to the coil of the third relay, the first end of the normally closed contact of the third relay is electrically connected to the AC power supply, and the second end of the normally closed contact of the third relay is electrically connected to the first end of the normally open contact of the first relay.

[0015] In one embodiment of the present invention, optionally, the control module is used to obtain the user's total electricity consumption based on the temporarily measured electricity consumption and the user's electricity consumption information, match the user's total electricity consumption with a preset electricity consumption payment rule, and output a second control signal to the coil of the third relay according to the matching result.

[0016] The beneficial effects of the present application: the present invention provides a device for replacing an electric meter without power failure. When replacing the electric meter to be replaced, after the control module sends a control signal to the switching module, the switching module switches the AC power supply through the connection line of the electric meter to be replaced to the connection line through the metering module connected to the household line. The metering module performs temporary metering of the electricity during the replacement of the electric meter, and sends the temporarily measured electricity to the control module. The control module obtains the user electricity information in the electric meter to be replaced through the communication module, and merges the temporarily measured electricity and the user electricity information together. The switching module, the control module and the metering module are all electrical components, and do not involve complex mechanical structures. Through the electrical connection between these modules, the device is simplified, the line is stably connected, and seamless switching is achieved. The electric meter is replaced and the electricity is measured without power failure, which improves the stability and convenience of the electric meter replacement.

[0017] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings: Figure 1 A structural block diagram of a device for replacing an electric meter without power failure according to an exemplary embodiment of the present invention; Figure 2 A structural connection diagram of a switching module of a device for replacing an electric meter without power failure according to an exemplary embodiment of the present invention; Figure 3 A structural connection diagram of a metering module of a device for replacing an electric meter without power failure according to an exemplary embodiment of the present invention; Figure 4a-4c A schematic diagram of the connection status of a device for replacing an electric meter without power failure according to an exemplary embodiment of the present invention.

[0019] in, Figure 1-Figure 4c The numbers are as follows: 12-switching module; 14-metering module, 16-control module; 18-communication module; 19-interaction module; 20-AC power supply; 30-electric meter to be replaced; 40-house line; KM1-first relay; KM1-1-first normally closed contact of the first relay; KM1-2-second normally closed contact of the first relay; KM1-3-normally open contact of the first relay; KM2-second relay; KM2-1-normally open contact of the second relay; P1-first group of connectors; P2-second group of connectors; P3-third group of connectors; 141-voltage detection unit; 142-current detection unit; 143-electricity metering chip. DETAILED DESCRIPTION

[0020] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0021] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the present invention application are described in detail below in conjunction with the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "embodiment" does not necessarily refer to the same embodiment. In addition, specific features, structures, or characteristics in one or more embodiments may be combined in any suitable form.

[0022] Combine the following Figures 1 to 4cA device for replacing an electric meter without power failure according to some embodiments of the present invention is described.

[0023] In one embodiment, Figure 1 As shown, a device for replacing an electric meter without power outage includes: a switching module 12, a metering module 14, a control module 16 and a communication module 18, wherein: The control signal input end of the switching module 12 is electrically connected to the first control signal output end of the control module 16 in a plug-in manner, the power input end of the switching module 12 is electrically connected to the AC power supply 20, and the first power connection end of the switching module 12 is electrically connected to the power connection end of the electric meter 30 to be replaced; the second power connection end of the switching module 12 is electrically connected to the power connection end of the metering module 14 in a plug-in manner, and the output end of the switching module 12 is electrically connected to the service line 40; the power output end of the metering module 14 is electrically connected to the power input end of the control module 16, the data communication end of the control module 16 is electrically connected to the first data communication end of the communication module 18, and the second data communication end of the communication module 18 is electrically connected to the data communication end of the electric meter 30 to be replaced, wherein the switching module includes a first sub-switching unit and a second sub-switching unit, the first sub-switching unit includes a first relay and a first group of connectors, and the second sub-switching unit includes a second relay, a second group of connectors, and a third group of connectors; The switching module 12 is used to switch the connection line where the meter 30 to be replaced is located and the connection line where the metering module 14 is located according to the control signal output by the control module 16 when replacing the meter 30 to be replaced, so that during the replacement of the meter, the connection line where the meter 30 to be replaced is disconnected, and the connection line where the metering module 14 is connected. The metering module 14 is used to temporarily measure the electricity when replacing the meter 30 to be replaced, and transmit the temporarily measured electricity to the control module 16. The communication module 18 is used to transmit the user electricity information and the user meter address of the meter 30 to be replaced to the control module 16. The control module 16 is used to merge the temporarily measured electricity with the user electricity information, so that after the meter replacement is completed, the merged user electricity information and user meter address can be sent to the new meter.

[0024] Specifically, when the electric meter to be replaced is in normal use, the switching module connects the AC power supply, the connection between the electric meter to be replaced and the service line, so that the connection line where the electric meter to be replaced is connected, and disconnects the connection between the AC power supply and the metering module and the service line, so that the connection line where the metering module is located is disconnected.

[0025] When replacing the electric meter, the control module obtains the electricity data, meter address and user payment information in the meter to be replaced through the communication module, plugs the metering module into the switching module, and the control module sends a control signal to the switching module. The switching module disconnects the AC power supply, the connection between the meter to be replaced and the service line according to the control signal, so that the connection line where the meter to be replaced is disconnected, and at the same time connects the connection between the AC power supply and the metering module and the service line, so that the connection line where the metering module is located is connected, so that the metering module measures electricity during the meter replacement process, realizes the circuit switching function of replacing the meter without power outage, ensures the stable supply and precise switching of voltage during the meter replacement process, and avoids the influence of voltage fluctuations on user equipment and meter replacement operations.

[0026] The control module integrates the power measured by the metering module and the user power information obtained from the meter to be replaced. After the meter is replaced successfully, the control module sends a control signal to the switching module. The switching module disconnects the AC power supply from the metering module and the service line according to the control signal, and connects the AC power supply, the new meter and the service line at the same time, so that the connection line where the new meter is located is connected. The control module is electrically connected to the new meter through the communication module, and transmits the integrated user power information and the user meter address to the new meter. Based on the set strategy of the power supply company, the control module accurately controls the meter replacement supply without affecting the power consumption of other legitimate users, and performs seamless switching in real time. The new meter records the power consumption and meter address information of the old meter.

[0027] Compared with the prior art, the present invention provides a device for replacing an electric meter without power failure. When replacing the electric meter to be replaced, after the control module sends a control signal to the switching module, the switching module switches the AC power supply through the connection line of the electric meter to be replaced to the connection line through the metering module to connect to the household line. The metering module temporarily measures the electricity during the replacement of the electric meter and sends the temporarily measured electricity to the control module. The control module obtains the user electricity information in the electric meter to be replaced through the communication module, and merges the temporarily measured electricity and the user electricity information together so as to send them to the new electric meter. The switching module, the control module and the metering module are all electrical components and do not involve complex mechanical structures. Through the electrical connection between these modules, the device is simplified, the stable connection of the line is realized, and seamless switching is achieved. The electric meter is replaced and the electricity is measured without power failure, thereby improving the stability and convenience of the electric meter replacement.

[0028] In one embodiment, the control signal input end of the first sub-switching unit is electrically connected to the first control signal output end of the control module 16 in a plug-in manner, the first power input end of the first sub-switching unit is electrically connected to the AC power supply 20, the second power output end of the first sub-switching unit is electrically connected to the input end of the electric meter 30 to be replaced, the household input end of the first sub-switching unit is electrically connected to the output end of the electric meter 30 to be replaced, and the household output end of the first sub-switching unit is electrically connected to the household line 40; the second power input end of the first sub-switching unit is electrically connected to the AC power supply 20, and the second power output end of the first sub-switching unit is electrically connected to the control end of the second sub-switching unit and the power input end of the second sub-switching unit, respectively; The power output end of the second sub-switching unit is electrically connected to the input end of the metering module 14 in a plug-in manner, the house input end of the second sub-switching unit is electrically connected to the power output end of the metering module 14 in a plug-in manner, and the house output end of the second sub-switching unit is electrically connected to the house line 40.

[0029] Specifically, when the electric meter to be replaced is in normal use, the first sub-switching unit connects the connection between the AC power supply, the electric meter to be replaced and the service line, so that the connection line where the electric meter to be replaced is connected, and the first sub-switching unit disconnects the connection between the AC power supply and the metering module, so that the connection line where the metering module is located is disconnected. When the electric meter needs to be replaced, the first sub-switching unit disconnects the connection between the AC power supply, the electric meter to be replaced and the service line, so that the connection line where the electric meter to be replaced is disconnected, and at the same time, the first sub-switching unit transmits the AC power to the second sub-switching unit, and the second sub-switching unit connects the connection between the AC power supply and the metering module and the service line, so that the connection line where the metering module is located is connected.

[0030] After the meter is replaced successfully, the first sub-switching unit connects the AC power supply, the new meter and the service line, so that the connection line where the new meter is located is connected, and the first sub-switching unit disconnects the connection between the AC power supply and the metering module, so that the connection line where the metering module is located is disconnected.

[0031] In one embodiment, Figure 2As shown, the first group of connectors P1 is electrically connected to the first control signal output end of the control module 16 in a plug-in manner, and the first group of connectors P1 is also electrically connected to the coil of the first relay KM1, the first end of the first normally closed contact KM1-1 of the first relay is electrically connected to the AC power supply 20, the second end of the first normally closed contact KM1-1 of the first relay is electrically connected to the input end of the electric meter to be replaced 30, the first end of the second normally closed contact KM1-2 of the first relay is electrically connected to the output end of the electric meter to be replaced 30, the second end of the second normally closed contact KM1-2 of the first relay is electrically connected to the service line 40, the first end of the normally open contact KM1-3 of the first relay is electrically connected to the AC power supply 20, and the second end of the normally open contact KM1-3 of the first relay is electrically connected to the control end of the second sub-switching unit and the power input end of the second sub-switching unit, respectively.

[0032] Specifically, when the electric meter to be replaced is in normal use, the coil of the first relay is not energized, the first normally closed contact and the second normally closed contact of the first relay are closed, so the connection line where the electric meter to be replaced is connected. When the electric meter needs to be replaced, the coil of the first relay receives a control signal from the control module, the coil of the first relay is energized, the first normally closed contact and the second normally closed contact of the first relay are disconnected, so that the connection line where the electric meter to be replaced is disconnected.

[0033] When the electric meter is replaced successfully, the coil of the first relay receives the control signal of the control module, the coil of the first relay loses power, and the first normally closed contact and the second normally closed contact of the first relay are closed, so that the connection line where the new electric meter is located is connected.

[0034] In one embodiment, Figure 2 As shown, the coil of the second relay KM2 is electrically connected to the second end of the normally open contact KM1-3 of the first relay and the second group of connectors P2 respectively, the second group of connectors P2 is also electrically connected to the input end of the metering module 14 in a plug-in manner, the third group of connectors P3 is electrically connected to the output end of the metering module 14 in a plug-in manner, the third group of connectors P3 is also electrically connected to the first end of the normally open contact KM2-1 of the second relay, and the second end of the normally open contact KM2-1 of the second relay is electrically connected to the service line 40.

[0035] Specifically, when the electric meter to be replaced is in normal use, the coil of the first relay is not energized, and the normally open contact of the first relay is disconnected. Therefore, even if the metering module is connected to the switching module, the connection line where the metering module is located is also disconnected. When the electric meter needs to be replaced, the power input end of the metering module is connected to the second group of connectors, and the power output end of the metering module is connected to the third group of connectors. When the coil of the first relay receives the control signal sent by the control module, the coil of the first relay is energized, the normally open contact of the first relay is closed, and the coil of the second relay is energized, and the normally open contact of the second relay is closed, so that the connection line where the metering module is located is connected, and the metering module measures the electricity during the replacement of the electric meter.

[0036] When the electric meter is replaced successfully, the coil of the first relay receives the control signal of the control module, the coil of the first relay loses power, the normally open contact of the first relay is disconnected, the coil of the second relay loses power, the normally open contact of the second relay is disconnected, and the connection line where the metering module is located is disconnected.

[0037] In one embodiment, the device for replacing an electric meter without power failure also includes a leakage protector, the input end of the leakage protector is electrically connected to the second end of the normally open contact KM1-3 of the first relay, and the output end of the leakage protector is electrically connected to the second group of connectors.

[0038] Specifically, it is equipped with a leakage protector, which monitors the leakage in the circuit in real time. Once a circuit abnormality occurs, the protection action is immediately triggered, the circuit is cut off and an alarm signal is issued to ensure the safety of personnel and the normal operation of equipment.

[0039] In one embodiment, Figure 3 As shown, the metering module 14 includes a power supply unit, a voltage detection unit 141, a current detection unit 142 and an electric quantity metering chip 143, wherein: The input end of the power supply unit is electrically connected to the second group of connectors P2 in a plug-in manner, the output end of the power supply unit is electrically connected to the input end of the voltage detection unit 141 and the input end of the current detection unit 142 respectively, the output end of the voltage detection unit 141 is electrically connected to the voltage input end of the power metering chip 143, the output end of the current detection unit 142 is electrically connected to the current input end of the power metering chip 143, the power output end of the power metering chip 143 is electrically connected to the power input end of the control module 16; the output end of the power supply unit is electrically connected to the third group of connectors P3 in a plug-in manner.

[0040] Specifically, the voltage signal pin of the power metering chip is connected to the output end of the voltage detection unit. After the voltage signal enters the power metering chip, the A / D converter inside the power metering chip converts the voltage signal to the digital domain. The current signal pin of the power metering chip is connected to the output end of the current detection unit. After the current signal enters the power metering chip, the A / D converter inside the power metering chip converts the current signal to the digital domain. Then, a fixed-function digital signal processor is used to multiply the voltage signal and the current signal. The product is proportional to the instantaneous power, and a signal related to the average power can be obtained, thereby realizing the measurement of the power. The current detection unit can use a current transformer, and the primary winding of the current transformer is connected in series to the power supply unit, and the secondary winding is connected to the current input end of the metering module. The voltage detection unit can use a voltage transformer, and the primary winding of the voltage transformer is connected in series to the power supply unit, and the secondary winding is connected to the voltage input end of the metering module.

[0041] In one embodiment, the device for replacing an electric meter without power outage also includes: an interactive module, wherein the data input and output ends of the interactive module are electrically connected to the data input and output ends of the control module 16, and the interactive module is used to receive control instructions from the user and transmit the received control instructions to the control module 16, so that the control module 16 sends a control signal to the switching module 12 according to the received control instructions.

[0042] Specifically, the interaction module can be a keyboard, mouse, touch screen, voice receiver, etc. The user sends a switching instruction to the control module through the interaction module, the control module sends a control signal to the switching module according to the received switching instruction, and the switching module performs corresponding actions according to the received control information.

[0043] In one embodiment of the present invention, the device for replacing an electric meter without power outage further includes: a battery power module, wherein a power output end of the battery power module is electrically connected to a power end of the control module 16 and a power end of the communication module 18 .

[0044] Specifically, the battery power module includes a lithium battery, a power conversion unit, etc. The power conversion unit mainly includes a conversion chip. The conversion chip converts the voltage provided by the lithium battery into the working voltage of the control module, provides power for the control module and the communication module, so that the control module and the communication module can work normally.

[0045] In one embodiment of the present invention, the device for replacing the electric meter without power failure also includes: a third relay and a fourth group of connectors, the fourth group of connectors is electrically connected to the second control signal output end of the control module in a plug-in manner, the fourth group of connectors is also electrically connected to the coil of the third relay, the first end of the normally closed contact of the third relay is electrically connected to the AC power supply, and the second end of the normally closed contact of the third relay is electrically connected to the first end of the normally open contact of the first relay.

[0046] Specifically, the control module obtains the total power consumption of the user based on the temporarily measured power consumption and the user's power consumption information, and matches the total power consumption of the user with the preset power consumption payment rules. When the user has a large overdue payment amount and has not paid the fee after multiple reminders, the second control signal is output to the coil of the third relay, the coil of the third relay is energized, the normally closed contact of the third relay is disconnected, and the connection line where the metering module is located is disconnected.

[0047] like Figure 4a As shown, when preparing to replace the electric meter, the metering module 14 and the control module 16 are plugged into the switching module 12, and the control module 16 obtains the user's electricity information and the user's electric meter address of the electric meter to be replaced through the communication module 18. Figure 4b As shown, when replacing an electric meter, the interactive module 19 receives the control instruction and sends it to the control module 16. The control module 16 sends a first control signal to the switching module 12 according to the control instruction. The switching module 12 switches the line so that the connection line where the electric meter to be replaced is disconnected and the connection line where the metering module 14 is connected. The metering module 14 measures the user's electricity consumption. Figure 4c As shown, after the replacement is successful, the interaction module 19 receives the control instruction and sends it to the control module 16. The control module 16 sends a first control signal to the switching module 12 according to the control instruction. The switching module 12 switches the line so that the connection line where the new meter is located is connected and the connection line where the metering module 14 is located is disconnected. The control module 16 sends the integrated user power information and user meter address to the new meter through the communication module 18.

[0048] The process of the device for replacing an electric meter without power failure in the present application is as follows: when the electric meter to be replaced is in normal use, the coil of the first relay shall not be energized, the first normally closed contact and the second normally closed contact of the first relay shall be closed, the normally open contact of the first relay shall be disconnected, the connection line where the electric meter to be replaced connected to the first normally closed contact and the second normally closed contact of the first relay is connected, the connection line where the metering module connected to the normally open contact of the first relay is connected is disconnected, and the electric meter to be replaced measures the electricity. When replacing an electric meter, firstly, the metering module is inserted into the second group of connectors and the third group of connectors through the connecting cable, and the first control signal output end of the control module is inserted into the first group of connectors through the cable. The control module obtains the user power information and the user meter address in the electric meter to be replaced through the communication module. After making preparations for switching, the user sends a switching instruction to the control module through the interactive module, and the control module sends a control signal to the switching module according to the switching instruction, that is, sends a control signal to the coil of the first relay, the coil of the first relay is energized, the first normally closed contact and the second normally closed contact of the first relay are disconnected, and the normally open contact of the first relay is closed, that is, the connection line where the electric meter to be replaced is located is disconnected, and the AC power is transmitted to the coil of the second relay, the coil of the second relay is energized, the normally open contact of the second relay is closed, and the connection line where the metering module is located is connected. The metering module measures the power during the replacement of the electric meter and transmits the measured power to the control module.

[0049] After the new meter is successfully connected, the user sends a switching instruction to the control module through the interactive module, and the control module sends a control signal to the switching module according to the switching instruction. The coil of the first relay loses power, the first normally closed contact and the second normally closed contact of the first relay close, and the normally open contact of the first relay opens. Since the first normally closed contact and the second normally closed contact of the first relay are closed, the connection line where the new meter is located is connected. Since the normally open contact of the first relay is opened, the coil of the second relay loses power, and the connection line where the metering module is located is disconnected. The control module merges the power measured by the metering module with the user power information obtained from the meter to be replaced, and sends the merged user power information and the user meter address to the new meter.

[0050] It should be understood that various modifications may be made to the embodiments of the present application. Therefore, the above description should not be considered as limiting, but only as an example of an embodiment. Other modifications within the scope and spirit of the present application will occur to those skilled in the art.

[0051] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present application and, together with the general description of the present application given above and the detailed description of the embodiments given below, serve to explain the principles of the present application.

[0052] These and other characteristics of the present application will become apparent from the following description of a preferred form of embodiment given as a non-limiting example with reference to the accompanying drawings.

[0053] It should also be understood that although the present application has been described with reference to some specific examples, those skilled in the art will be able to readily implement many other equivalent forms of the present application.

[0054] The above and other aspects, features and advantages of the present application will become more apparent in view of the following detailed description when taken in conjunction with the accompanying drawings.

[0055] Specific embodiments of the present application are described hereinafter with reference to the accompanying drawings; however, it should be understood that the embodiments applied for are merely examples of the present application, which may be implemented in a variety of ways. Well-known and / or repeated functions and structures are not described in detail to avoid unnecessary or redundant details that obscure the present application. Therefore, the specific structural and functional details applied for herein are not intended to be limiting, but merely serve as a basis and representative basis for the claims to teach those skilled in the art to use the present application in a variety of ways with substantially any suitable detailed structure.

[0056] This specification may use the phrases "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," all of which may refer to one or more of the same or different embodiments according to the present application.

[0057] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and protection scope of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present application.

Claims

1. A device for replacing an electric meter without power outage, characterized in that: include: Switching module, metering module, control module and communication module, wherein, The control signal input end of the switching module is electrically connected to the first control signal output end of the control module in a plug-in manner, the power input end of the switching module is electrically connected to the AC power supply, and the first power connection end of the switching module is electrically connected to the power connection end of the electric meter to be replaced; the second power connection end of the switching module is electrically connected to the power connection end of the metering module in a plug-in manner, and the output end of the switching module is electrically connected to the service line; the power output end of the metering module is electrically connected to the power input end of the control module, the data communication end of the control module is electrically connected to the first data communication end of the communication module, and the second data communication end of the communication module is electrically connected to the data communication end of the electric meter to be replaced, wherein the switching module includes a first sub-switching unit and a second sub-switching unit, the first sub-switching unit includes a first relay and a first group of connectors, and the second sub-switching unit includes a second relay, a second group of connectors, and a third group of connectors; The switching module is used to switch the connection line where the meter to be replaced is located and the connection line where the metering module is located according to the control signal output by the control module when replacing the meter to be replaced, so that during the replacement of the meter, the connection line where the meter to be replaced is disconnected, and the connection line where the metering module is connected; the metering module is used to temporarily measure the electricity when replacing the meter to be replaced, and transmit the temporarily measured electricity to the control module; the communication module is used to transmit the user electricity information and the user meter address of the meter to be replaced to the control module; the control module is used to merge the temporarily measured electricity with the user electricity information, so that after the meter is replaced, the merged user electricity information and the user meter address are sent to the new meter.

2. The device for replacing an electric meter without power failure according to claim 1, characterized in that: The control signal input end of the first sub-switching unit is electrically connected to the first control signal output end of the control module in a plug-in manner, the first power input end of the first sub-switching unit is electrically connected to the AC power supply, the second power output end of the first sub-switching unit is electrically connected to the input end of the electric meter to be replaced, the household input end of the first sub-switching unit is electrically connected to the output end of the electric meter to be replaced, and the household output end of the first sub-switching unit is electrically connected to the household line; the second power input end of the first sub-switching unit is electrically connected to the AC power supply, and the second power output end of the first sub-switching unit is electrically connected to the control end of the second sub-switching unit and the power input end of the second sub-switching unit respectively; The power output end of the second sub-switching unit is electrically connected to the input end of the metering module in a plug-in manner, the house input end of the second sub-switching unit is electrically connected to the power output end of the metering module in a plug-in manner, and the house output end of the second sub-switching unit is electrically connected to the house line.

3. The device for replacing an electric meter without power failure according to claim 2, characterized in that: The first group of connectors is electrically connected to the first control signal output end of the control module in a plug-in manner, the first group of connectors is also electrically connected to the coil of the first relay, the first end of the first normally closed contact of the first relay is electrically connected to the AC power supply, the second end of the first normally closed contact of the first relay is electrically connected to the input end of the meter to be replaced, the first end of the second normally closed contact of the first relay is electrically connected to the output end of the meter to be replaced, the second end of the second normally closed contact of the first relay is electrically connected to the service line, the first end of the normally open contact of the first relay is electrically connected to the AC power supply, and the second end of the normally open contact of the first relay is electrically connected to the control end of the second sub-switching unit and the power input end of the second sub-switching unit, respectively.

4. The device for replacing an electric meter without power failure according to claim 3, characterized in that: The coil of the second relay is electrically connected to the second end of the normally open contact of the first relay and the second group of connectors, respectively; the second group of connectors is also electrically connected to the input end of the metering module in a plug-in manner; the third group of connectors is electrically connected to the output end of the metering module in a plug-in manner; the third group of connectors is also electrically connected to the first end of the normally open contact of the second relay; and the second end of the normally open contact of the second relay is electrically connected to the service line.

5. The device for replacing an electric meter without power failure according to claim 4, characterized in that: The device for replacing an electric meter without power failure also includes a leakage protector, an input end of the leakage protector is electrically connected to the second end of the normally open contact of the first relay, and an output end of the leakage protector is electrically connected to the second group of connectors.

6. The device for replacing an electric meter without power failure according to claim 4, characterized in that: The metering module includes a power supply unit, a voltage detection unit, a current detection unit and an electric quantity metering chip, wherein: The input end of the power supply unit is electrically connected to the second group of connectors in a plug-in manner, the output end of the power supply unit is electrically connected to the input end of the voltage detection unit and the input end of the current detection unit respectively, the output end of the voltage detection unit is electrically connected to the voltage input end of the power metering chip, the output end of the current detection unit is electrically connected to the current input end of the power metering chip, and the power output end of the power metering chip is electrically connected to the power input end of the control module; the output end of the power supply unit is electrically connected to the third group of connectors in a plug-in manner.

7. The device for replacing an electric meter without power failure according to any one of claims 1 to 6, characterized in that: The device for replacing an electric meter without power failure also includes: an interaction module, wherein a data input and output terminal of the interaction module is electrically connected to a data input and output terminal of the control module, and the interaction module is used to receive a control instruction from a user and transmit the received control instruction to the control module, so that the control module sends a control signal to the switching module according to the received control instruction.

8. The device for replacing an electric meter without power failure according to any one of claims 1 to 6, characterized in that: The device for replacing an electric meter without power outage also includes a battery power module, wherein a power output end of the battery power module is electrically connected to a power end of the control module and a power end of the communication module.

9. The device for replacing an electric meter without power failure according to claim 4, characterized in that: The device for replacing the electric meter without power failure also includes: a third relay and a fourth group of connectors, the fourth group of connectors is electrically connected to the second control signal output end of the control module in a plug-in manner, the fourth group of connectors is also electrically connected to the coil of the third relay, the first end of the normally closed contact of the third relay is electrically connected to the AC power supply, and the second end of the normally closed contact of the third relay is electrically connected to the first end of the normally open contact of the first relay.

10. The device for replacing an electric meter without power failure according to claim 9, characterized in that: The control module is used to obtain the user's total electricity based on the temporarily measured electricity and the user's electricity information, match the user's total electricity with a preset electricity payment rule, and output a second control signal to the coil of the third relay according to the matching result.

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