Three-phase electric energy meter and system for rate period change

Abstract

The utility model relates to the technical field of electric energy metering, and discloses a three-phase electric energy meter and system for rate time period change, and the three-phase electric energy meter comprises a controller and a Bluetooth module electrically connected with the controller. The Bluetooth module communicates with terminal equipment and is used for receiving a rate time period change instruction and rate time period change data sent by the terminal equipment and forwarding the rate time period change instruction and the rate time period change data to the controller; the rate time period change data comprises an all-day rate time period parameter table or rate time period parameters taking hours as units; and the controller is used for carrying out rate time period change setting according to the rate time period change instruction and the rate time period change data. According to the utility model, through the Bluetooth module, rate time period setting is carried out on the three-phase electric energy meter on the terminal equipment, the cost is low, and the efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of electricity metering technology, specifically to a three-phase electricity meter and system for changing rate periods. Background Technology

[0002] In related technologies, most electronic energy meters have a rate-period function, which can set different rates according to different time periods to adapt to the needs and costs of different periods. During peak-valley electricity metering, rate-period changes are involved, requiring RS485 or infrared communication for these settings. However, on the one hand, using RS485 or infrared communication requires operators to purchase handheld devices, such as PDAs, to change the rate-period on the electronic energy meter, resulting in high costs. Furthermore, using RS485 communication requires purchasing a matching RS485 interface for wired connection. On the other hand, RS485 or infrared communication setup is cumbersome, hindering large-scale batch rate-period changes for a large number of users, leading to low efficiency.

[0003] Therefore, there is an urgent need for a low-cost, high-efficiency electronic energy meter. Utility Model Content

[0004] In view of this, the present invention provides a three-phase energy meter and system for changing rate periods, in order to solve the problems of high cost and low efficiency caused by using RS485 communication or infrared communication.

[0005] In a first aspect, this utility model provides a three-phase energy meter for changing rate periods, including: a controller and a Bluetooth module electrically connected to the controller;

[0006] The Bluetooth module communicates with the terminal device to receive rate period change instructions and rate period change data sent by the terminal device, and forwards the rate period change instructions and rate period change data to the controller; the rate period change data includes a full-day rate period parameter table or rate period parameters in hourly units.

[0007] The controller is used to set the rate period change according to the rate period change instruction and the rate period change data.

[0008] This utility model embodiment uses a low-power Bluetooth module instead of traditional infrared communication or RS485 communication. It can be set up using terminal devices with Bluetooth functionality such as mobile phones, tablets, and computers, without the need to purchase additional handheld devices, thus reducing costs. Furthermore, it only requires the terminal device to send the rate period change data to the Bluetooth module via short-range wireless communication technology, and the controller connected to the Bluetooth module will set the rate period parameters according to the instructions of the terminal device, greatly improving efficiency.

[0009] In some optional implementations, the Bluetooth module is also used to verify the communication protocol between the Bluetooth module and the terminal device, as well as the validity of the rate period change data. If the verification is successful, the rate period change instruction and the rate period change data are forwarded to the controller.

[0010] The controller is also used to verify the communication protocol between the Bluetooth module and the controller, as well as the validity of the rate period change data. If the verification is successful, the rate period change is set according to the forwarded rate period change instruction and the rate period change data.

[0011] In some optional embodiments, the three-phase energy meter further includes: a display module; the display module is electrically connected to the controller; the Bluetooth module includes: an encryption unit;

[0012] The encryption unit is electrically connected to the display module and is used to generate a pairing password and send the pairing password to the display module before verifying the communication protocol between the Bluetooth module and the terminal device and the validity of the rate period change data.

[0013] The display module is used to display the pairing password.

[0014] In some optional implementations, the controller is further configured to send identification information representing the completion result to the Bluetooth module after setting the rate period change according to the rate period change instruction and the rate period change data;

[0015] The Bluetooth module is also used to forward identification information representing the completion result to the terminal device;

[0016] The identification information for the completion of the representation includes: waiting for setting, setting in progress, or setting completed.

[0017] In some optional embodiments, the three-phase energy meter further includes: a metering module; the metering module is electrically connected to the controller;

[0018] The metering module includes: a current and voltage sampling unit and a metering unit;

[0019] The current and voltage sampling unit is electrically connected to the metering unit and is used to collect the analog voltage signal and analog current signal of the user load and send them to the metering unit.

[0020] The metering unit is electrically connected to the controller and is used to convert the analog current signal and the analog voltage signal into digital current signal and digital voltage signal, and send them to the controller.

[0021] The controller is also configured to calculate the digital current signal and the digital voltage signal to obtain the real-time active power, and convert the active power into pulses; and to record the time data corresponding to the pulses, and to count the number of pulses according to the rate period corresponding to the time data to obtain the number of pulses corresponding to each rate period; and to obtain the power data of each rate period according to the number of pulses corresponding to each rate period and the preset pulse constant.

[0022] In some optional embodiments, the three-phase energy meter further includes: an RS485 communication module; the RS485 communication module is electrically connected to the controller;

[0023] The controller is also used to send the power data to the RS485 communication module;

[0024] The RS485 communication module is used to send the power data to the server platform.

[0025] In some alternative implementations, the controller is further configured to send the power data to a display module; the display module is further configured to display the power data.

[0026] Secondly, this utility model embodiment also provides a three-phase energy meter system for changing rate periods, including the three-phase energy meter for changing rate periods, and a server platform, concentrator, and terminal equipment that are communicatively connected to the three-phase energy meter for changing rate periods. Attached Figure Description

[0027] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of a three-phase energy meter structure for changing rate periods according to an embodiment of the present utility model;

[0029] Figure 2 This is a structural framework diagram of a three-phase energy meter system for rate period changes according to an embodiment of the present utility model.

[0030] Explanation of reference numerals in the attached figures:

[0031] 100. Three-phase energy meter for changing tariff periods; 1. Controller; 2. Bluetooth module; 201. Encryption unit; 3. Display module; 4. Metering module; 401. Current and voltage sampling unit; 402. Metering unit; 5. RS485 communication module;

[0032] 200. Three-phase energy meter system for changing rate periods; 300. Server platform; 400. Concentrator; 500. Terminal equipment. Detailed Implementation

[0033] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0034] In related technologies, most electronic energy meters have a rate-period function, which can set different rates according to different time periods to adapt to the needs and costs of different periods. At present, industrial and commercial rate-period settings often need to be changed, and it is not possible to return all energy meters to the manufacturer for rate-period setting. However, using RS485 communication or infrared communication to change rate-period settings has many drawbacks: First, when using RS485 communication or infrared communication, operators need to purchase a handheld device, such as a handheld device, to change the rate-period of electronic energy meters through the handheld device, which is costly. In addition, when using RS485 communication, a matching RS485 interface needs to be purchased for wired connection. On the other hand, RS485 communication or infrared communication is cumbersome to set up, which is not conducive to batch rate-period changes for large-scale users and is inefficient.

[0035] Based on this, the present invention uses a low-power Bluetooth module to replace traditional infrared communication or RS485 communication. It can be set up using terminal devices with Bluetooth function such as mobile phones, tablets, and computers, without the need to purchase additional handheld devices, thus reducing costs. Furthermore, the terminal device only needs to send the rate period change data to the Bluetooth module via short-range wireless communication technology, and the controller connected to the Bluetooth module will set the rate period parameters according to the instructions of the terminal device, which greatly improves efficiency.

[0036] According to an embodiment of this utility model, a three-phase energy meter for changing rate periods is provided, which can be applied to electricity consumption locations such as residential areas, schools, factories, hospitals, and shopping malls. Figure 1 A schematic diagram of a three-phase energy meter structure for rate period changing according to an embodiment of the present invention is shown. Figure 1 As shown, this utility model embodiment provides a three-phase energy meter 100 for changing rate periods, including: a controller 1 and a Bluetooth module 2 electrically connected to the controller 1.

[0037] The Bluetooth module 2 is preferably a BLE Bluetooth module; the Bluetooth module 2 communicates with the terminal device via radio waves over short distances; the Bluetooth module 2 is used to receive rate period change instructions and rate period change data sent by the terminal device; the rate period change data may include: a full-day rate period parameter table or rate period parameters in hourly units; the controller 1 is used to set rate period changes according to the rate period change instructions and rate period change data.

[0038] It should be noted that controller 1 may include programmable logic control components (such as PLC or CPU), memory, and electronic components connected to the programmable logic control components, which are well known to those skilled in the art and will not be described in detail here. The terminal device may be a tablet, mobile phone, computer, etc.

[0039] For example, taking the addition of a BLE Bluetooth module to a DTSF858 three-phase energy meter as an example: After the three-phase energy meter is powered on, it enters the initialization state, such as configuring parameters like baud rate and time interval between different data packets. Then, Bluetooth module 2 enters the discovery mode. At this time, if it is necessary to set the rate period, the operator can use the Bluetooth function built into the terminal device to search for and pair Bluetooth module 2. Since each three-phase energy meter has a different Bluetooth communication address for Bluetooth module 2, the operator can find the three-phase energy meter that needs to be set for the rate period based on the address and pair it with it.

[0040] Then, the operator can open the application software on the terminal device, such as a mini-program, app, or webpage, to set the rate period parameters. It should be noted that the terminal device can save multiple pre-set full-day rate period parameter tables. When a rate period needs to be changed, simply send the corresponding full-day rate period parameter table to Bluetooth module 2. Alternatively, parameters can be set for a specific time period on an hourly basis, and the parameters for that time period can be sent to Bluetooth module 2. Or, parameters for a specific time period in a pre-set full-day rate period parameter table can be modified and saved, and the modified full-day rate period parameter table can be sent to Bluetooth module 2.

[0041] At this time, Bluetooth module 2 receives the rate period change instruction and rate period change data sent by the terminal device, and forwards the rate period change instruction and rate period change data to controller 1; controller 1 can then change the rate period of the three-phase energy meter according to the rate period change instruction and rate period change data.

[0042] This embodiment of the invention uses a low-power Bluetooth module 2 instead of traditional infrared communication or RS485 communication. There is no need to purchase additional handheld devices, resulting in low cost. Furthermore, the terminal device only needs to send the rate period change data to the Bluetooth module via short-range wireless communication technology. The controller connected to the Bluetooth module will then set the rate period parameters according to the instructions of the terminal device, which greatly improves efficiency.

[0043] In some optional implementations, the Bluetooth module 2 is also used to verify the communication protocol between the Bluetooth module 2 and the terminal device, as well as the validity of the rate period change data. If the verification is successful, the rate period change command and rate period change data are forwarded to the controller 1.

[0044] The controller is also used to verify the communication protocol between Bluetooth module 2 and controller 1, as well as the validity of the rate period change data. If the verification is successful, the rate period change is set according to the forwarded rate period change command and rate period change data.

[0045] The Bluetooth module 2 and controller 1 of this embodiment can significantly improve the reliability and integrity of data transmission by verifying the validity of the communication protocol and data.

[0046] In some optional implementations, the three-phase energy meter 100 for rate period changes further includes: a display module 3; the display module 3 is electrically connected to the controller 1; the Bluetooth module 2 includes: an encryption unit 201;

[0047] The encryption unit 201 is electrically connected to the display module 3. The encryption unit 201 is used to generate a pairing password before verifying the validity of the communication protocol between the Bluetooth module 2 and the terminal device, as well as the rate period change data, and sends the pairing password to the display module. The display module 3 is used to display the pairing password.

[0048] Throughout the data transmission process, Bluetooth module 2 uses data encryption to ensure data security and integrity.

[0049] In some optional implementations, controller 1 is further configured to send identification information indicating completion to Bluetooth module 2 after setting the rate period change according to the rate period change instruction and rate period change data; Bluetooth module 2 is further configured to forward the identification information indicating completion to the terminal device. The identification information indicating completion includes: waiting for setting, setting in progress, or setting completed.

[0050] In this embodiment of the invention, after the controller 1 completes the setting of the rate period, it returns the identification information indicating the completion result to the Bluetooth module 2. The Bluetooth module 2 then returns the identification information indicating the completion result to the terminal device through radio wave technology, so that the terminal device can know the current setting process and perform other subsequent operations.

[0051] In some alternative implementations, the three-phase energy meter 100 for rate period changes further includes: a metering module 4; the metering module 4 is electrically connected to the controller 1;

[0052] The metering module 4 includes a current and voltage sampling unit 401 and a metering unit 402. The current and voltage sampling unit 401 is electrically connected to the metering unit 402. The current and voltage sampling unit 401 is used to collect the analog voltage signal and analog current signal of the user load and send them to the metering unit 402. The metering unit 402 is electrically connected to the controller 1. The metering unit 402 is used to convert the analog current signal and analog voltage signal into digital current signal and digital voltage signal and send them to the controller 1. The controller 1 is also used to calculate the digital current signal and digital voltage signal to obtain the real-time active power and convert the active power into pulses. It is also used to record the time data corresponding to the pulses and to count the number of pulses according to the rate period corresponding to the time data to obtain the number of pulses corresponding to each rate period. It is also used to obtain the energy data of each rate period according to the number of pulses corresponding to each rate period and the preset pulse constant.

[0053] This embodiment of the utility model uses metering module 4 to measure the electricity data for each rate period in order to realize the time-of-use metering function for electricity.

[0054] In some alternative implementations, the three-phase energy meter 100 for rate period changes further includes: an RS485 communication module 5; the RS485 communication module 5 is electrically connected to the controller 1;

[0055] Controller 1 is also used to send power data to RS485 communication module 5; RS485 communication module 5 is used to send power data to server platform.

[0056] In this embodiment, the controller 1 calculates the electrical energy data and transmits it to the server platform via the RS485 communication module 5 to achieve remote meter reading. The RS485 communication module 5 and Bluetooth module 2 work together. Bluetooth module 2 enables short-range radio wave communication with the terminal device, sending rate period change commands and data to the controller 1 to achieve the rate period change function. The RS485 communication module 5 performs remote electrical energy data transmission to achieve remote meter reading.

[0057] In some alternative implementations, the controller 1 is also used to send power data to the display module 3; the display module 3 is also used to display the power data.

[0058] This utility model embodiment displays the electricity consumption data for each time period, allowing users to easily view their electricity usage details and calculate their electricity bills based on the rate time schedule.

[0059] Figure 2 This is a structural framework diagram of a three-phase energy meter system for rate period changing according to an embodiment of the present utility model, as shown below. Figure 2 As shown, this utility model embodiment also provides a three-phase energy meter system 200 for rate period changes, including a three-phase energy meter 100 for rate period changes, a server platform 300, a concentrator 400, and a terminal device 500 that are communicatively connected to the three-phase energy meter 100 for rate period changes.

[0060] For example, the terminal device 500 can change the rate period of the three-phase energy meter 100 used for rate period change. The three-phase energy meter 100 used for rate period change can also send the energy data of each period to the concentrator 400. The concentrator 400 counts the energy data of the three-phase energy meters 100 used for rate period change of multiple users and forwards them to the server platform 300 for unified management by the server platform 300.

[0061] In summary, this utility model embodiment uses a low-power Bluetooth module instead of traditional infrared or RS485 communication, eliminating the need to purchase additional handheld devices, thus reducing costs. Furthermore, it only requires the terminal device to send the rate period change data to the Bluetooth module via short-range wireless communication technology, and the controller connected to the Bluetooth module will set the rate period parameters according to the instructions of the terminal device, significantly improving efficiency.

[0062] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations shall fall within the scope defined by the appended claims.

Claims

1. A three-phase energy meter for changing rate periods, characterized in that, include: Controller, and Bluetooth module electrically connected to the controller; The Bluetooth module communicates with the terminal device and is used to receive rate period change instructions and rate period change data sent by the terminal device, and forward the rate period change instructions and rate period change data to the controller; The rate period change data includes a full-day rate period parameter table or rate period parameters in hourly units. The controller is used to set the rate period change according to the rate period change instruction and the rate period change data.

2. The three-phase energy meter according to claim 1, characterized in that, The Bluetooth module is also used to verify the communication protocol between the Bluetooth module and the terminal device, as well as the validity of the rate period change data. If the verification is successful, the rate period change instruction and the rate period change data are forwarded to the controller. The controller is also used to verify the communication protocol between the Bluetooth module and the controller, as well as the validity of the rate period change data. If the verification is successful, the rate period change is set according to the forwarded rate period change instruction and the rate period change data.

3. The three-phase energy meter according to claim 2, characterized in that, Also includes: Display module; The display module is electrically connected to the controller; the Bluetooth module includes an encryption unit; The encryption unit is electrically connected to the display module and is used to generate a pairing password and send the pairing password to the display module before verifying the communication protocol between the Bluetooth module and the terminal device and the validity of the rate period change data. The display module is used to display the pairing password.

4. The three-phase energy meter according to claim 1, characterized in that, The controller is also configured to send identification information representing the completion result to the Bluetooth module after setting the rate period change according to the rate period change instruction and the rate period change data; The Bluetooth module is also used to forward identification information representing the completion result to the terminal device; The identification information for the completion of the representation includes: waiting for setting, setting in progress, or setting completed.

5. The three-phase energy meter according to claim 1, characterized in that, Also includes: Metering module; The metering module is electrically connected to the controller; The metering module includes: a current and voltage sampling unit and a metering unit; The current and voltage sampling unit is electrically connected to the metering unit and is used to collect the analog voltage signal and analog current signal of the user load and send them to the metering unit. The metering unit is electrically connected to the controller and is used to convert the analog current signal and the analog voltage signal into digital current signal and digital voltage signal, and send them to the controller. The controller is also configured to calculate the digital current signal and the digital voltage signal to obtain the real-time active power, and convert the active power into pulses; and to record the time data corresponding to the pulses, and to count the number of pulses according to the rate period corresponding to the time data to obtain the number of pulses corresponding to each rate period; and to obtain the power data of each rate period according to the number of pulses corresponding to each rate period and the preset pulse constant.

6. The three-phase energy meter according to claim 5, characterized in that, Also includes: RS485 communication module; the RS485 communication module is electrically connected to the controller; The controller is also used to send the power data to the RS485 communication module; The RS485 communication module is used to send the power data to the server platform.

7. The three-phase energy meter according to claim 5 or 6, characterized in that, The controller is also used to send the power data to the display module; the display module is also used to display the power data.

8. A three-phase energy meter system for rate period changing, characterized in that, It includes a three-phase energy meter for rate period changing as described in any one of claims 1-7, and a server platform, concentrator, and terminal equipment communicatively connected to the three-phase energy meter for rate period changing.

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