CN107328970A - Intelligent electric meter with manual telegram in reply function - Google Patents

Abstract

The invention discloses a smart meter with manual power recovery function, which includes a smart meter body, which is equipped with a power supply module, an auxiliary power supply module, a voltage sampling module, a current sampling module, a special metering chip, a high-speed data processor, LCD display, communication interface, real-time clock and data interface; special metering chip accurately obtains various real-time parameters of power grid operation through the voltage sampling module and current sampling module, and processes the data according to the corresponding tariff requirements, and saves the processing results in the data memory , and provide information and exchange data through the data interface at any time; the smart meter also includes a manual power recovery key; the smart meter body is provided with a manual power recovery key identification button. In the case of remote power transmission failure, the electric meter of the present invention can manually restore power on site.

Description

Smart meter with manual power recovery function

technical field

The invention relates to a multi-functional smart meter with manual power recovery function, which is widely used in the field of remote fee control customer power outage management. After a resident customer fails to pay the fee in time and performs a remote fee control power outage, the demand side system upgrades, malfunctions or In the offline state of the terminal, after the customer has successfully paid the fee, and under the premise that the remote power cannot be transmitted, the power recovery tool can be used to manually restore the power on site to ensure the normal power consumption of the customer, which belongs to the field of business management technology.

Background technique

In the current marketing management, the application rate of remote cost control smart meters is getting higher and higher, and the function of remotely stopping and sending power by relying on the demand side system is becoming more and more common, and it is more and more convenient and fast. However, in the demand side system upgrade, network In the case of instability or abnormality of the terminal, the remote power recovery function cannot be realized, which affects the normal power consumption of customers. For such problems, the staff can only go to the scene to short-circuit or replace the meter temporarily, which increases the workload and is easy Affecting metering indicators, this innovation adds a manual reset function on the basis of smart meters. Once remote control fails, on-site manual power restoration can be performed to avoid safety hazards and indicator problems caused by short-circuits, and to deliver electricity to customers in a timely manner, improving 95598 work. single processing efficiency.

The currently used remote cost control smart meters can only rely on the power consumption information collection system for remote power outage and transmission. In the case of network instability and terminal offline, it is impossible to restore power for customers in time, and the staff can only go to the site to replace the meter. , Temporary short-circuiting for temporary processing, increasing the workload and easily affecting the team indicators.

Disadvantages of traditional remote cost control smart meters:

1) It can only rely on the power consumption information collection system for remote power transmission, which has high requirements for the operation of the network and terminals.

2) The form of power transmission is not flexible enough to realize the function of emergency power transmission.

3) After the remote power transmission fails, there is a risk of electric shock and a waste of resources if the staff short-circuit or replace the meter on site.

Contents of the invention

The purpose of the present invention is to provide a smart meter with a manual power recovery function, which reduces the risk of electric shock and saves resources.

In order to solve the above technical problems, the present invention provides the following technical solutions: a smart meter with a manual power recovery function, including a smart meter body, the smart meter body is connected to a remote electricity sales system through a low-voltage power line carrier and an RS485 interface; The body of the smart meter is equipped with a power supply module, an auxiliary power supply module, a voltage sampling module, a current sampling module, a dedicated metering chip, a high-speed data processor, an LCD display, a communication interface, a real-time clock, and a data interface; the power supply module is the The voltage sampling module, the dedicated metering chip and the high-speed data processor are powered; the auxiliary power supply module is connected to the power supply module; the dedicated metering chip accurately obtains each real-time parameter of power grid operation through the voltage sampling module and the current sampling module , and process the data according to the corresponding rate requirements, store the processing results in the data storage, and provide information and exchange data through the data interface at any time;

The smart meter also includes a manual power recovery key; the smart meter body is provided with a manual power recovery key identification button; the smart power meter body is also provided with a manual power recovery signal input unit, a manual power recovery signal identification unit and a manual power recovery command output unit; the manual power recovery key is inserted into the manual power recovery key identification button to start the manual power recovery signal, and the signal is transmitted to the high-speed data processor of the smart meter through the manual power recovery signal input unit, The high-speed data processor is equipped with a manual power recovery signal recognition unit; the high-speed data processor recognizes the manual power recovery signal and stores the switch state, and at the same time controls the manual power recovery command output unit to issue a manual power recovery command to close the switch.

Further, the body of the smart meter is provided with a ventilation hole, and a protective device is provided outside the ventilation hole, and the protective device includes an outer baffle, an inner baffle, and an inner baffle and an outer baffle. The frame in the middle part matches the internal contour of the ventilation hole; the outer baffle blocks the outside of the ventilation hole; the inner baffle blocks the inside of the ventilation hole; the ventilation net is fixed on the frame; the ventilation The mesh includes a cooling mesh layer, a dustproof adsorption mesh layer, a ventilation mesh layer and an insulating mesh layer sequentially from the inside to the outside.

Further, the ventilation hole is a circular structure, the frame includes a first frame body and a second frame body; one end of the first frame body is fixedly connected to the inner baffle, The other end is provided with a threaded connection port; one end of the second frame body is fixedly connected with the outer baffle, and the other end is provided with a threaded segment connected with the threaded connection port; the second frame body is provided with There are a first dust-proof adsorption net layer, a ventilation net layer and an insulation net layer; a heat-dissipating net layer and a second dust-proof adsorption net layer are arranged in the first frame.

Further, the inner side of the ventilation hole is provided with an openable baffle; the baffle includes a baffle body and a plurality of unit movable panels arranged on the baffle body; the two movable panels of the unit Guide rails are arranged on the side, and guide columns that can move in the guide rails are arranged on both sides of the baffle body; the guide columns are movably connected with the baffle body through a rotating shaft; the middle part of the movable plate of the unit is provided with Connecting rod; one end of the connecting rod is hingedly connected with the movable plate of the unit, and the other end is provided with a clasp; the clasp is fixed in the slot of the elevating rod, and the elevating rod is driven to move up and down by the driving device.

Further, a nut sleeve is fixedly arranged on the top of the lifting rod; the nut sleeve is screwed to a ball screw, and the end of the ball screw is connected to the output end of the driving motor.

Further, the smart meter body is provided with a heat dissipation device, and the heat dissipation device includes a heat dissipation plate arranged inside the smart meter body and a cooling fan arranged on the side wall of the smart meter body.

The beneficial effects achieved by the present invention are:

The manual power recovery function of the smart meter of the present invention issues a forced closing command to the on-site meter through the manual power recovery key, and the internal high-speed data processor of the meter performs signal recognition, sends a closing command, and closes the switch on site. The electric energy meter receives the switch-on, allowable switch-on, on-site switch-on instructions and ESAM data reading instructions issued by the remote electricity sales system, all of which set the parameters of the electric energy meter, read the ESAM data through the virtual medium, and issue remote control commands to operate At the time, it needs to pass strict password verification or security certification such as ESAM module to ensure safe and reliable data transmission.

In the case of remote power transmission failure, the electric meter of the present invention can manually restore power on site, and the power transmission forms are various and practical. On-site power recovery only needs to use the special power recovery key for on-site power transmission, no on-site wiring is required, the operation is simple, and the risk of electric shock is reduced. The invention does not need to re-exchange the meter on site, thereby reducing the cost and unnecessary waste. ,

The smart meter body of the invention has good heat dissipation and dustproof functions.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings that need to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.

Fig. 1 is a structural block diagram of the present invention.

Fig. 2 is a schematic diagram of the structure of the present invention.

Fig. 3 is a schematic diagram of the structure of the ventilation hole of the invention.

Fig. 4 is a structural schematic diagram of the inside baffle plate of the ventilation hole.

Fig. 5 is a schematic diagram of the connection between the movable plate of the unit and the body of the baffle.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

As shown in Figures 1-5, it is a smart meter with manual power recovery function of the present invention, including a smart meter body 1, and the smart meter body 1 is connected to a remote electricity selling system through a low-voltage power line carrier and an RS485 interface; A power supply module 101, an auxiliary power supply module 102, a voltage sampling module 103, a current sampling module 104, a dedicated metering chip 105, a high-speed data processor 106, an LCD display 107, a communication interface 108, a real-time clock 109 and data Interface; the power supply module 101 supplies power for the voltage sampling module 103, the dedicated metering chip 105 and the high-speed data processor 106; the auxiliary power supply module 102 is connected with the power supply module 101; the dedicated metering The chip 105 accurately obtains various real-time parameters of the power grid operation through the voltage sampling module 103 and the current sampling module 104, and processes the data according to the corresponding rate requirements, stores the processing results in the data memory 110, and provides information and conducts data through the data interface at any time. data exchange;

The smart meter also includes a manual power restoration key 2; the smart meter body 1 is provided with a manual power restoration key identification button 111; the smart meter body 1 is also provided with a manual power restoration signal input unit 112, Manual power recovery signal identification unit 113 and manual power recovery command output unit 114; manual power recovery key 2 is inserted into the manual power recovery key identification button 111 to start the manual power recovery signal, and the signal is passed through the manual power recovery signal input unit 112 Transmission to the high-speed data processor 106 of the smart meter, the high-speed data processor 106 is provided with a manual power recovery signal identification unit 113; the high-speed data processor 106 recognizes the manual power recovery signal and stores the switch state, and simultaneously controls the output of the manual power recovery command Unit 114 issues a manual power restoration command to close the switch.

The working principle of the present invention: the smart electric meter of the present invention integrates metering, fee control, monitoring, alarm, display, freezing, RS485 communication, infrared communication, carrier communication functions, and manual reset in one body to realize residential electricity metering and remote pull-in Brake, manual emergency power transmission function. It is composed of metering chip, high-speed data processor, real-time clock, data interface and other equipment. Under the control of the high-speed data processor, the real-time parameters of the power grid operation are accurately obtained through the metering chip, and the data is processed according to the corresponding tariff requirements, and the results are stored in the data memory, and information and data exchange are provided to the external interface at any time .

The remote fee control function of smart meters is realized through low-voltage power line carrier, RS485 interface and remote electricity sales system. The manual power recovery function of the smart meter issues a forced closing command to the on-site meter through the manual power recovery key. After the internal high-speed data processor of the meter recognizes the signal, it sends a closing command to close the switch on site.

The electric energy meter receives the switch-on, allowable switch-on, on-site switch-on instructions and ESAM data reading instructions issued by the remote electricity sales system, all of which set the parameters of the electric energy meter, read the ESAM data through the virtual medium, and issue remote control commands to operate At the time, it needs to pass strict password verification or security certification such as ESAM module to ensure safe and reliable data transmission.

The present invention adds a manual reset key identification button on the basis of the original smart meter. When the staff arrives at the scene, use the manual recovery key to insert the on-site recovery identification button, start the manual recovery signal and transmit it to the high-speed data processor of the smart meter, identify the manual recovery signal in the high-speed data processor and store the switch status, At the same time, a manual power recovery command is issued to close the switch. After the network is normal or the terminal is online, the processor will feed back the on-site switch status of the terminal and modify it.

The smart meter body 1 is provided with a ventilation hole 31, and the outside of the ventilation hole 31 is provided with a protective device, and the protective device includes an outer baffle 32, an inner baffle 33, and an inner baffle 32 and an outer baffle. The frame 34 in the middle part of 33 matches the inner contour of the ventilation hole 31; the outer baffle 32 blocks the outside of the ventilation hole 31; the inner baffle 33 blocks the inside of the ventilation hole 31; the frame 34 is fixedly arranged There is a ventilation net; the ventilation net includes a heat dissipation net layer 351 , a dustproof adsorption net layer, a ventilation net layer 353 and an insulating net layer 354 from inside to outside.

The ventilation hole 31 is a circular structure, and the frame 34 includes a first frame body 341 and a second frame body 342; one end of the first frame body 341 is connected to the inner baffle plate 33 Fixedly connected, the other end is provided with a threaded connection port 343; one end of the second frame body 342 is fixedly connected with the outer baffle plate 32, and the other end is provided with a threaded segment 344 connected with the threaded connection port; The second section frame body 342 is provided with a first dustproof adsorption net layer 352a, a ventilation net layer 353 and an insulation net layer 354; the first section frame body 341 is provided with a heat dissipation net layer 351 and a second dustproof net layer Adsorption mesh layer 352b.

The inner side of the ventilation hole is provided with an openable baffle; the baffle includes a baffle body 361 and a plurality of unit movable plates 362 arranged on the baffle body 361; the two sides of the unit movable plate 362 are arranged There are guide rails 363, the two sides of the baffle body 361 are provided with guide columns 364 that can move in the guide rails; the guide columns 364 are movably connected with the baffle body 361 through a rotating shaft; the unit movable plate 362 The middle part of the connecting rod 365 is provided with a connecting rod 365; one end of the connecting rod 365 is hingedly connected with the unit movable plate 362, and the other end is provided with a snap ring 366; the snap ring 366 is fixed in the slot of the elevating rod 367, and the The elevating rod 367 is driven to move up and down by a driving device.

The top of the lifting rod 367 is fixed with a nut sleeve 368 ; the nut sleeve 368 is screwed with a ball screw 369 , and the end of the ball screw 369 is connected with the output end of the drive motor 370 .

The smart meter body 1 is provided with a heat dissipation device, and the heat dissipation device includes a heat dissipation plate arranged inside the smart meter body 1 and a cooling fan 5 arranged on the side wall of the smart meter body 1 .

The invented ventilation hole not only has a good heat dissipation effect, but also has a good dustproof effect, and the baffle can regularly dissipate heat.

The embodiment described above is only a description of the preferred implementation of the present invention, and is not intended to limit the concept and scope of the present invention. Various modifications and improvements made should fall within the scope of protection of the present invention, and the technical content claimed for protection in the present invention has been fully recorded in the technical requirements.

Claims (7)

1. the intelligent electric meter with telegram in reply function manually, including intelligent electric meter body（1）, it is characterised in that：Described intelligence electricity Table body（1）It is connected by low voltage power line carrier and RS485 interfaces with long-range electricity-selling system；In described intelligent electric meter body It is provided with power module（101）, auxiliary power module（102）, voltage sampling module（103）, current sampling module（104）, specially Use computation chip（105）, high-speed data processor（106）, LCD display（107）, communication interface（108）, real-time clock （109）And data-interface；Described power module（101）For described voltage sampling module（103）, the special metering IC （105）And high-speed data processor（106）Power supply；Described auxiliary power module（102）With described power module（101）Even Connect；Described the special metering IC（105）Pass through voltage sampling module（103）, current sampling module（104）It is accurate to obtain power network Each real-time parameter is run, and data are handled according to the requirement of corresponding rate, result is stored in data storage （110）In, and provide information by data-interface at any time and carry out data exchange.

2. the intelligent electric meter according to claim 1 with telegram in reply function manually, it is characterised in that：Described intelligent electric meter Also include telegram in reply key manually（2）；Described intelligent electric meter body（1）On be provided with manually telegram in reply key recognition button（111）； Described intelligent electric meter body（1）Inside it is additionally provided with manual multiplexed electrical signal input block（112）, manual multiplexed electrical signal recognition unit （113）With manual telegram in reply instruction output unit（114）；Manual telegram in reply key（2）The described manual telegram in reply key identification of insertion is pressed Button（111）Start manual multiplexed electrical signal, and pass through manual multiplexed electrical signal input block（112）The signal is transmitted high to intelligent meter Fast data processor（106）In, high-speed data processor（106）Inside it is provided with manual multiplexed electrical signal recognition unit（113）；At a high speed Data processor（106）Recognize after manual multiplexed electrical signal and storage switch state, while telegram in reply instructs output unit manually for control （114）Assign telegram in reply instruction manually and carry out switch combined floodgate.

3. the intelligent electric meter according to claim 1 with telegram in reply function manually, it is characterised in that：Described intelligent electric meter Body（1）On be provided with air vent（31）, described air vent（31）Outside is provided with protector, described protector bag Include outer baffle（32）, Internal baffle（33）And it is arranged at Internal baffle（32）And outer baffle（33）Middle part and air vent（31）'s The framework of in-profile matching（34）；Described outer baffle（32）Block air vent（31）Outside；The Internal baffle（33）Gear Firmly air vent（31）Inner side；Described framework（34）On be fixedly installed ventilated net；Described ventilated net is from the inside to the outside successively Including radiating stratum reticulare（351）, it is dust-proof absorption stratum reticulare, ventilation stratum reticulare（353）With insulation stratum reticulare（354）.

4. the intelligent electric meter according to claim 3 with telegram in reply function manually, it is characterised in that：Described air vent （31）For circular configuration, described framework（34）Including first paragraph support body（341）With second segment support body（342）；Described first Section support body（341）One end and described Internal baffle（33）It is fixedly connected, the other end is provided with threaded connection mouth（343）；It is described Second segment support body（342）One end and described outer baffle（32）It is fixedly connected, the other end is provided with to be connected with being threadedly coupled mouth The thread segment connect（344）；Described second segment support body（342）Inside it is provided with the first dust-proof absorption stratum reticulare（352a）, ventilation stratum reticulare （353）With insulation stratum reticulare（354）；Described first paragraph support body（341）Inside it is provided with radiating stratum reticulare（351）With the second dust-proof absorption Stratum reticulare（352b）.

5. the intelligent electric meter with telegram in reply function manually according to claim 4, it is characterised in that：Described air vent （31）Inner side be provided with retractable baffle plate；Described baffle plate includes baffle body（361）, be arranged at baffle body（361） On multiple unit activity plates（362）；Described unit activity plate（362）Both sides be provided with guide rail（363）, the baffle plate sheet Body（361）Both sides are provided with the lead that can be moved in guide rail（364）；Described lead（364）Pass through rotating shaft and institute The baffle body stated（361）It is flexibly connected；The unit activity plate（362）Middle part be provided with connecting rod（365）；The connecting rod （365）One end and unit activity plate（362）It is articulated and connected, the other end is provided with snap ring（366）；Described snap ring（366）Gu It is scheduled on elevating lever（367）Neck in, described elevating lever（367）It is driven to move up and down by drive device.

6. the intelligent electric meter according to claim 5 with telegram in reply function manually, it is characterised in that：The elevating lever （367）Top be fixedly installed nut sleeve（368）；Described nut sleeve（368）With a ball-screw（369）It is spirally connected, it is described Ball-screw（369）End and motor（370）Output end connection.

7. the intelligent electric meter according to claim 1 with telegram in reply function manually, it is characterised in that：Described intelligent electric meter Body（1）On be provided with heat abstractor, described heat abstractor includes being arranged at intelligent electric meter body（1）Internal heat sink with And it is arranged on intelligent electric meter body（1）The cooling fan of side wall（5）.