A device for preventing unauthorized power cut by users

Abstract

The present invention discloses a device for preventing unauthorized power cut-off by users, which includes a dual-power switch, a DC power supply module and a remote detector. The load connection terminal of the dual-power switch is connected to the intelligent electricity meter terminal, the main power connection terminal of the dual-power switch is connected between the intelligent electricity meter and the air switch, the secondary power connection terminal of the dual-power switch is connected to the DC power supply module. The remote detector includes a control unit, a data acquisition unit and an alarm unit. The data acquisition unit includes a pressure sensor and a temperature sensor. The pressure sensor is arranged at the upper or lower end of the opening where the operating handle of the air switch is located, and the temperature sensor is arranged on one side outside the air switch. Both the pressure sensor and the temperature sensor are connected to the signal input end of the control unit, and the alarm unit is connected to the signal output end of the control unit. This device is used to solve the problem that the existing users' unauthorized power cut-off causes the electricity consumption data unable to be uploaded.

Description

Technical Field

[0001] The present invention specifically relates to a device for preventing users from privately switching off the power supply Background Art

[0002] The power marketing department often encounters a difficult problem. Due to the fact that users of rural well transformers privately switch off the power supply, the smart electricity meters and collectors lose power, resulting in the inability to collect the electricity consumption for the current day and the current month, affecting the line loss index and the recovery of electricity charges for the current month. Based on the above problems, the present application provides a device for preventing users from privately switching off the power supply. With this device, even if the user privately switches off the power supply, the electricity consumption can still be uploaded on time Summary of the Invention

[0003] The present invention discloses a device for preventing users from privately switching off the power supply, which solves the problem that the electricity consumption cannot be uploaded due to users privately switching off the power supply

[0004] The present invention discloses a device for preventing users from privately switching off the power supply, which includes a dual-power switch (3), a DC power supply module (4), and a remote detector. The dual-power switch (3) includes a load connection terminal, a main power supply connection terminal, and a secondary power supply connection terminal. The load connection terminal is connected to the smart electricity meter end (1). The main power supply connection terminal is connected between the smart electricity meter and the air switch (2), that is, the main power supply connection terminal is connected to the mains electricity. The secondary power supply connection terminal is connected to the DC power supply module (4) through an inverter (5). The remote detector includes a control unit (6), a data acquisition unit, and an alarm unit (7). The data acquisition unit includes a pressure sensor (9) and a temperature sensor (8). The pressure sensor (9) is arranged at the upper or lower end of the opening where the operating handle (21) of the air switch (2) is located. After the operating handle (21) performs an on or off action, it can contact the pressure sensor (9) and generate a pressure signal. The temperature sensor (8) is arranged on one side outside the air switch (2). Both the pressure sensor (9) and the temperature sensor (8) are connected to the signal input end of the control unit (6). The alarm unit (7) is connected to the signal output end of the control unit (6), and the alarm unit (7) includes a on-site alarm and / or a remote warning unit. The remote warning unit includes a remote data transceiver, and the remote warning unit is connected to the upper computer of the power system

[0005] As a preferred solution of the present application, a spring contact (91) is arranged on the side of the pressure sensor (9) in contact with the operating handle (21), and the operating handle (21) is in direct contact with the spring contact (91)

[0006] As a preferred solution of the present application, a relay is provided between the inverter (5) and the DC power supply module (4), and the relay is connected to the signal output end of the control unit (6). After the control unit (6) sends an action instruction to the relay, the relay closes and opens, thereby starting or stopping the DC power supply module (4) to supply power to the smart meter terminal (1).

[0007] As a preferred solution of the present application, the DC power supply module (4) is connected to the mains via a charger, that is, the mains charges the DC power supply.

[0008] Compared with the prior art, the device in the present application can be used to add a backup power supply to the existing smart meter terminal 1. When the user privately disconnects the air switch 2 to cut off the city power, the dual power switch 3 can switch to the backup power supply to power the smart meter terminal 1. At the same time, the action of the air switch 2 will link the pressure sensor 9 to generate a trigger signal, and the trigger signal is used to trigger the remote detector to enter the detection state. The control unit 6 in the remote detector receives the real-time signals collected by the pressure sensor 9 and the temperature sensor 8. When the signals collected by the temperature sensor 8 and the pressure sensor 9 are received at the same time, it means that the probability of tripping caused by overload or short circuit of the air switch 2 is high. When only the pressure signal collected by the pressure sensor 9 is received, it means that the probability of the user privately pulling the switch is high. At this time, the alarm unit 7 can make an on-site alarm to warn the user. At the same time, the location information of the smart meter is sent to the power system host computer. The staff can dispatch relevant staff to conduct on-site inspections as needed. Therefore, the device in the present application can start the backup power supply to power the smart meter terminal 1 after the user privately pulls the switch, ensuring that the daily and monthly electricity is uploaded in time. At the same time, the user can be supervised and warned. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 A control structure diagram of a device for preventing users from unauthorized power off provided in an embodiment of the present invention.

[0010] Figure 2 A schematic structural diagram of an air switch provided with a pressure sensor and a temperature sensor provided in an embodiment of the present invention.

[0011] Figure 3 A schematic structural diagram of a pressure sensor provided in an embodiment of the present invention having a spring contact.

[0012] As shown in the figure:

[0013] Smart meter terminal 1, air switch 2, operating handle 21, dual power supply switch 3, DC power supply module 4, inverter 5, control unit 6, alarm unit 7, temperature sensor 8, pressure sensor 9, spring contact 91. DETAILED DESCRIPTION

[0014] The preferred embodiments of the present invention will be described in detail below.

[0015] This embodiment provides a device for preventing users from privately tripping the switch. Refer to Figure 1 , this device includes a dual-power switch 3, a DC power supply module 4, and a remote detector. The dual-power switch 3 includes a load connection terminal, a main power connection terminal, and a secondary power connection terminal. Among them, the load connection terminal is connected to the smart meter terminal 1. In this embodiment, the smart meter terminal 1 includes a smart meter and a collection terminal. The main power connection terminal is connected between the smart meter and the air switch 2, that is, the main power connection terminal is connected to the commercial power and mainly supplies power to the smart meter through the commercial power. The secondary power connection terminal is connected to the DC power supply module 4 through an inverter 5, that is, the DC power supply module 4 is used as a backup power supply to supply power to the smart meter. When in use, when the main power supply (commercial power) is tripped and disconnected through the air switch 2, the dual-power switch 3 can be switched to the DC power supply module 4 to continue supplying power to the smart meter terminal 1; the remote detector includes a control unit 6, a data collection unit, and an alarm unit 7. The data collection unit includes a pressure sensor 9 and a temperature sensor 8. The pressure sensor 9 is arranged at the upper or lower end of the opening where the operating handle 21 of the air switch 2 is located. After the operating handle 21 performs the on or off action, it can contact the pressure sensor 9 and generate a pressure signal. In this embodiment, in order to avoid damage to the pressure sensor 9 caused by the impact force of the operating handle 21 during the tripping process, it is preferably provided with a spring contact on the side where the pressure sensor 9 contacts the operating handle 21. Refer to Figures 2-3 , after the operating handle 21 moves, it directly contacts the spring contact 91. The spring contact 91 not only has a buffering effect, but also can increase the pressure applied to the pressure sensor 9 when the elastic coefficient is certain, avoiding the problem that the pressure sensor 9 cannot collect the pressure value due to the small contact force between the operating handle 21 and the pressure sensor 9. The temperature sensor 8 is arranged on one side outside the air switch 2, preferably on the side close to the bimetal of the air switch 2; both the pressure sensor 9 and the temperature sensor 8 are connected to the signal input end of the control unit 6, and respectively transmit the collected pressure signal and temperature signal to the control unit 6. The alarm unit 7 is connected to the signal output end of the control unit 6, and the alarm unit 7 includes a on-site alarm and / or a remote warning unit. The remote warning unit includes a remote data transceiver, and the remote warning unit is connected to the upper computer of the power system. In this embodiment, the main purpose of setting the remote detector is to supervise and warn users, and impose corresponding penalties in real time when necessary.

[0016] In this embodiment, the device is preferably installed in a sealed box, which cannot be opened privately by users.

[0017] In this embodiment, in order to save the power at the end of the DC power module 4, it is preferred that the DC power module 4 can be started and shut down at a fixed time to supply power to the smart meter end 1. Preferably, a relay is provided between the inverter 5 and the DC power module 4, and the relay is connected to the signal output end of the control unit 6. After the control unit 6 sends an action instruction to the relay, the relay is closed or disconnected to start or stop the DC power module 4 from supplying power to the smart meter end 1. In specific use of this embodiment, when it reaches 23:30, the control unit 6 controls the relay to close and then switches to the DC power module 4 to supply power to the smart meter end 1. When it reaches 0:30, the control unit 6 controls the relay to disconnect and then cuts off the DC power module 4 from supplying power to the smart meter end 1, that is, the DC power module 4 is used to provide one hour of power supply time for the smart meter end 1, and the power required to be uploaded on the day is uploaded during this period, ensuring that the power on the day is uploaded to the system in time, avoiding the problem that the power on the day and the power on the month cannot be collected, thereby affecting the line loss index and the recovery of electricity charges on the month.

[0018] Furthermore, in this embodiment, the DC power supply module 4 is connected to the mains via a charger, that is, the mains charges the DC power supply.

[0019] When the present embodiment is in use, when the user privately disconnects the air switch 2 to cut off the city power, the dual power switch 3 can switch to the DC power module 4 (backup power supply) to supply power to the smart meter terminal 1 (the specific power supply time and duration can be set by the control unit 6). At the same time, the action of the air switch 2 will link the pressure sensor 9 to generate a trigger signal, and the trigger signal is used to trigger the remote detector to enter the detection state. The control unit 6 in the remote detector receives the real-time signals collected by the pressure sensor 9 and the temperature sensor 8. When the signals collected by the temperature sensor 8 and the pressure sensor 9 are received at the same time, it means that the probability of tripping caused by overload or short circuit of the air switch 2 is high. When only the pressure signal collected by the pressure sensor 9 is received, it means that the probability of the user privately disconnecting the power is high. At this time, the alarm unit 7 can make an on-site alarm to warn the user. At the same time, the location information of the smart meter is sent to the upper computer of the power system. The staff can dispatch relevant staff to conduct on-site inspections as needed. Therefore, the device in the present embodiment can start the backup power supply to supply power to the smart meter terminal 1 after the user privately disconnects the power, ensuring that the daily and monthly electricity is uploaded in time. At the same time, the user can be supervised and warned.

[0020] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several changes and improvements without departing from the inventive concept of the present invention, and these all fall within the protection scope of the present invention.

Claims

1. A device for preventing unauthorized power cut-off by users, characterized in that, it includes a dual-power switch (3), a DC power supply module (4) and a remote detector. The dual-power switch (3) has load connection terminals, main power connection terminals and secondary power connection terminals. The load connection terminals are connected to the smart meter end (1), and the smart meter end (1) includes a smart meter and a collection terminal. The main power connection terminals are connected between the smart meter end (1) and the air switch (2), that is, the main power connection terminals are connected to the mains power. The secondary power connection terminals are connected to the DC power supply module (4) through an inverter (5). The remote detector includes a control unit (6), a data collection unit and an alarm unit (7). The data collection unit includes a pressure sensor (9) and a temperature sensor (8). The pressure sensor (9) is arranged at the upper or lower end of the opening where the operating handle (21) of the air switch (2) is located. After the operating handle (21) performs the on or off action, it can contact the pressure sensor (9) and generate a pressure signal. The temperature sensor (8) is arranged on one side close to the bimetal of the air switch (2). Both the pressure sensor (9) and the temperature sensor (8) are connected to the signal input end of the control unit (6). The alarm unit (7) is connected to the signal output end of the control unit (6), and the alarm unit (7) includes a on-site alarm and / or a remote alarm unit. The remote alarm unit includes a remote data transceiver, and the remote alarm unit is connected to the upper computer of the power system. A relay is arranged between the inverter (5) and the DC power supply module (4), and the relay is connected to the signal output end of the control unit (6). After the control unit (6) issues an action instruction to the relay, the relay closes and disconnects to control the DC power supply module (4) to supply power to the smart meter end (1) regularly, ensuring that the electricity consumption of the day is uploaded to the system in time.

2. The device for preventing unauthorized power cut-off by users according to claim 1, characterized in that, a spring contact (91) is arranged on the side where the pressure sensor (9) contacts the operating handle (21), and the operating handle (21) is in direct contact with the spring contact (91).

3. The device for preventing unauthorized power cut-off by users according to claim 1 or 2, characterized in that, the DC power supply module (4) is connected to the mains power through a charger, that is, the mains power charges the DC power supply.

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