User display unit and system based on HPLC + HRF dual-mode communication

Abstract

The utility model provides a user display unit and system based on HPLC + HRF dual-mode communication. The user display unit comprises a master control MCU, a display module and an HPLC + HRF dual-mode communication module. The display module and the HPLC + HRF dual-mode communication module are respectively connected with the main control MCU; the HPLC + HRF dual-mode communication module comprises a communication MCU (Microprogrammed Control Unit), an HRF radio frequency circuit and an HPLC carrier circuit; the HRF radio frequency circuit and the HPLC carrier wave circuit are respectively connected with the communication MCU; and the communication MCU is connected with the main control MCU. According to the utility model, the user display unit is provided with the HPLC + HRF dual-mode communication module, so that the user display unit can communicate with the ammeter in two modes at the same time, and the problem that a single communication mode is easily limited is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power communication, in particular to a user display unit and a system based on HPLC+HRF dual-mode communication. Background Art

[0002] The user display unit (UDU) is a window for data exchange between electricity users and electricity meters. It can be used to query, set, and purchase electricity from the meter. Currently, UDUs communicate with the meter using a single twisted pair, PLC, or RF method. However, each communication method has its own set of unavoidable problems:

[0003] 1. PLC is greatly affected by the power line load and must be installed next to the socket;

[0004] 2. RF is seriously affected by the environment. Walls, trees, etc. can affect communication effects.

[0005] Therefore, the problems existing in the existing user display unit communication need to be further improved. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a user display unit and system based on HPLC+HRF dual-mode communication, so as to solve the problem that the communication between the user display unit and the representative is limited due to a single communication mode.

[0007] In order to solve the above technical problems, the first technical solution adopted by the present invention is:

[0008] The user display unit based on HPLC+HRF dual-mode communication includes: main control MCU, display module and HPLC+HRF dual-mode communication module;

[0009] The display module and the HPLC+HRF dual-mode communication module are respectively connected to the main control MCU.

[0010] Optionally, the HPLC+HRF dual-mode communication module includes a communication MCU, an HRF radio frequency circuit and an HPLC carrier circuit;

[0011] The HRF radio frequency circuit and the HPLC carrier circuit are respectively connected to the communication MCU; and the communication MCU is connected to the main control MCU.

[0012] Optionally, the HPLC+HRF dual-mode communication module further includes a UARTA circuit; the communication MCU is connected to the main control MCU via the UARTA circuit.

[0013] Optionally, the HRF radio frequency circuit includes a radio frequency input / output terminal, a radio frequency switch chip and an antenna; the antenna is connected to the switch chip; and the switch chip is connected to the communication MCU through the radio frequency input / output terminal.

[0014] Optionally, the HPLC carrier circuit includes a PLC carrier input / output terminal, a signal amplifier and a carrier coupling circuit; the carrier coupling circuit is connected to the signal amplifier; and the signal amplifier is connected to the communication MCU through the PLC carrier input / output terminal.

[0015] Optionally, a power supply module is further included; the power supply module is connected to the main control MCU.

[0016] Optionally, a keyboard module is further included; the keyboard module is connected to the main control MCU.

[0017] Optionally, the keyboard module is a 3*4-key virtual keyboard or a physical keyboard.

[0018] The second technical solution adopted in this utility model is:

[0019] A metering system based on HPLC+HRF dual-mode communication, comprising an electric meter and the user display unit based on HPLC+HRF dual-mode communication;

[0020] The electric meter is communicatively connected with the user display unit based on HPLC or HRF.

[0021] Optionally, the electric meter includes an HPLC communication module, an HRF communication module or an HPLC+HRF dual-mode communication module.

[0022] The beneficial effect of the present invention is that by setting an HPLC+HRF dual-mode communication module on the user display unit, it is enabled to communicate with the electric meter in two ways at the same time, thereby solving the problem that a single communication mode is easily limited. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic structural diagram of a user display unit based on HPLC+HRF dual-mode communication provided by an embodiment of the present invention;

[0024] Figure 2 A schematic structural diagram of a user display unit based on HPLC+HRF dual-mode communication provided in a specific embodiment of the utility model;

[0025] Figure 3 A schematic structural diagram of a user display unit based on HPLC+HRF dual-mode communication is provided in another specific embodiment of the present invention;

[0026] Figure 4 A schematic structural diagram of a meter system based on HPLC+HRF dual-mode communication provided by an embodiment of the utility model.

[0027] Description of labels:

[0028] 100, user display unit 1; 200, electric meter;

[0029] 101. Main control MCU; 102. Display module; 103. HPLC+HRF dual-mode communication module;

[0030] 104. Power module; 105. Keyboard module;

[0031] 31. Communication MCU; 32. HRF radio frequency circuit; 33. HPLC carrier circuit. DETAILED DESCRIPTION

[0032] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

[0033] Please refer to Figure 1 and Figure 2 , Figure 1 A schematic structural diagram of a user display unit based on HPLC+HRF dual-mode communication provided by an embodiment of the present utility model.

[0034] like Figure 1 As shown, the user display unit 100 based on HPLC+HRF dual-mode communication provided in this embodiment includes: a main control MCU 101, a display module 102 and an HPLC+HRF dual-mode communication module 103; the display module 102 and the HPLC+HRF dual-mode communication module 103 are respectively connected to the main control MCU 101.

[0035] The main control MCU is configured as the main control of the user display unit, which is used for information input, processing, display output, communication analysis, etc.

[0036] The display module is used to display input data and communication results, and preferably adopts an LCD display screen.

[0037] The HPLC+HRF dual-mode communication module is used to simultaneously provide two communication modes: HPLC communication mode and HRF communication mode.

[0038] This embodiment replaces the single-mode communication module of the existing user display unit with an HPLC+HRF dual-mode communication module to solve the problems that the existing user display unit can only interact with the electricity meter in a single communication mode, which is easily affected by space and environment, and is inconvenient to install and implement. It can realize that the user display unit and the electricity meter have two communication interaction modes at the same time, providing users with more choices, not only supporting users to flexibly choose the placement location, but also making it more convenient for users to use. Moreover, when one communication mode is affected, the other communication mode can be used as a supplement to ensure successful communication between the user display unit and the electricity meter, thereby optimizing the user experience.

[0039] In some embodiments, such as Figure 2 As shown, the HPLC+HRF dual-mode communication module 103 includes a communication MCU 31, an HRF radio frequency circuit 32, and an HPLC carrier circuit 33. The HRF radio frequency circuit 32 and the HPLC carrier circuit 33 are respectively connected to the communication MCU 31; the communication MCU 31 is connected to the main control MCU 101.

[0040] The HRF radio frequency circuit is used to provide an HRF radio frequency communication mode;

[0041] The HPLC carrier circuit is used to provide an HPLC carrier communication mode;

[0042] The communication MCU is responsible for the encoding, decoding, frequency, transmission and reception control, modulation and demodulation of HRF radio frequency signals and HPLC signals.

[0043] Specifically, the HPLC+HRF dual-mode communication module further includes a UARTA circuit; the communication MCU of the HPLC+HRF dual-mode communication module and the main control MCU are connected and communicated via the UART circuit.

[0044] The UARTA circuit is used for handshaking, receiving and sending data between the communication MCU and the master MCU. During the handshake, the communication MCU actively obtains the response meter number from the master MCU, thereby ensuring that only the meter corresponding to the meter number is communicated with.

[0045] Specifically, the HRF radio frequency circuit includes a radio frequency input / output terminal, a radio frequency switch chip and an antenna; the antenna is connected to the switch chip; and the switch chip is connected to the communication MCU through the radio frequency input / output terminal.

[0046] The radio frequency input / output terminal is used to output / input HRF radio frequency signals to the communication MCU;

[0047] The radio frequency switch chip is used to control the transmission and reception of HRF radio frequency signals, and can filter, amplify, and delay HRF radio frequency signals;

[0048] The antenna is used to radiate and receive wireless HRF radio frequency signals.

[0049] Preferably, based on the characteristic that the HRF communication mode is susceptible to interference, the HRF radio frequency circuit is arranged on the upper end of the user display unit, and there should be no components or ground under the antenna to maintain clearance.

[0050] Specifically, the HPLC carrier circuit includes a PLC carrier input / output terminal, a signal amplifier and a carrier coupling circuit; the carrier coupling circuit is connected to the signal amplifier; and the signal amplifier is connected to the communication MCU through the PLC carrier input / output terminal.

[0051] Wherein, the PLC carrier input / output terminal is used to output / input the PLC carrier signal to the communication MCU;

[0052] The signal amplifier is used to amplify the power of the PLC carrier signal;

[0053] The carrier coupling circuit is used to couple the carrier signal to the power line, and at other times receives and filters the signal on the power line and then hands it over to the communication MCU for processing; preferably, the carrier coupling circuit is composed of a transmitting circuit, a receiving circuit and a coupling coil.

[0054] Preferably, the HPLC carrier circuit is arranged below the user display unit, close to the power supply line, to facilitate signal coupling.

[0055] like Figure 3 As shown, in some specific implementations, the user display unit 100 further includes a power module 104 ; the power module 104 is connected to the main control MCU 101 .

[0056] The power supply module is used to provide power to the user display unit.

[0057] like Figure 3 As shown, in some further specific implementations, the user display unit 100 further includes a keyboard module 105 ; the keyboard module 105 is connected to the main control MCU 101 .

[0058] Optionally, the keyboard module may be a virtual touch keyboard, or may be an embedded or external physical keyboard.

[0059] Preferably, based on the usage requirements of the electricity meter scenario, the keyboard module is a 3*4 keyboard, which is used for operations such as electricity meter information query, electricity purchase code input, and page turning query.

[0060] The working principle of the user display unit based on HPLC+HRF dual-mode communication provided in the above embodiment is as follows:

[0061] When the user enters the query code or electricity purchase token through the keyboard of the user display unit, the main control MCU packages the information and forms a communication frame and sends it to the communication MCU.

[0062] The communication frame can follow the HDLC format. The specific frame format is shown in Table 1 below:

[0063]

[0064] Table 1

[0065] The "information" includes LLC sublayer data (CIF and CIP are fixed at 3 bytes E6 E6 00, and the meter end is fixed at 3 bytes E6E7 00) and APDU. The APDU data includes the query code or electricity purchase token information. The data structure is shown in Table 2:

[0066]

[0067] Table 2

[0068] The main control MCU sends the communication frame to the communication MCU through the UART circuit; the communication MCU generates HRF signals and HPLC signals after encoding, and sends query data to the meter through the HRF radio frequency circuit and HPLC carrier circuit respectively.

[0069] Correspondingly, the electric meter with an HRF communication module or an HPLC communication module or an HRF+HPLC dual-mode communication module can receive query information from the user display unit corresponding to the meter number, and process the query information after receiving it. After the processing is completed, the communication result is returned to the user display unit through the HPLC communication module or the HRF communication module or the HRF+HPLC dual-mode communication module.

[0070] The HPLC+HRF dual-mode communication module of the user display unit receives the feedback information, demodulates and decodes it through the communication MCU, and sends the return frame to the main control MCU for processing; the user display unit receives the return frame, parses it, and displays the result on the LCD.

[0071] Please refer to Figure 4 , the second embodiment of the present utility model is:

[0072] This embodiment further expands upon the first embodiment and provides a meter system based on HPLC+HRF dual-mode communication. Figure 4 As shown, it includes an electric meter 200 and a user display unit 100.

[0073] The user display unit in this embodiment is the user display unit described in the above embodiment 1. The specific structure and working principle will not be repeated here. For details, please refer to the description of embodiment 1.

[0074] The electric meter in this embodiment is equipped with an HRF communication module or an HPLC communication module or an HRF+HPLC dual-mode communication module. Preferably, the HRF+HPLC dual-mode communication module is equipped to achieve the best communication solution in conjunction with a user display unit also equipped with the HRF+HPLC dual-mode communication module.

[0075] The working principle of the meter system based on HPLC+HRF dual-mode communication provided in this embodiment is as follows:

[0076] When the user enters a query or electricity purchase token through the keyboard of the user display unit, the main control MCU packages the information and forms a communication frame, which is sent to the communication MCU; the communication MCU encodes the communication frame to generate HRF signals and HPLC signals, and then sends the HRF signals and HPLC signals to the electricity meter through HPLC+HRF dual-mode communication.

[0077] The electric meter receives the HRF signal or the HPLC signal or receives both the HRF signal and the HPLC signal according to the communication module equipped therein, and after processing, returns the communication result to the user display unit through the communication module equipped therein;

[0078] The user display unit receives the return frame (HRF signal or HPLC signal), parses it and displays the result on the LCD.

[0079] In summary, the user display unit and system based on HPLC+HRF dual-mode communication provided by the present invention, by replacing the single-mode communication module of the user display unit with the HPLC+HRF dual-mode communication module, can realize that the user display unit and the electric meter have two communication interaction modes at the same time, providing more choices for users, not only supporting users to flexibly choose the placement position, but also making it more convenient for users to use; and when one communication mode is affected, the other communication mode can be used as a supplement to ensure successful communication between the user display unit and the electric meter, thereby optimizing the user experience.

[0080] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the description and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. User display unit based on HPLC+HRF dual-mode communication, characterized in that: Used by electricity users to query, set, and purchase electricity from electric meters; includes: main control MCU, display module, and HPLC+HRF dual-mode communication module; The display module and the HPLC+HRF dual-mode communication module are respectively connected to the main control MCU; the HPLC+HRF dual-mode communication module includes a communication MCU, an HRF radio frequency circuit and an HPLC carrier circuit; The HRF radio frequency circuit and the HPLC carrier circuit are respectively connected to the communication MCU; the communication MCU is connected to the main control MCU; It also includes a keyboard module; the keyboard module is connected to the main control MCU.

2. The user display unit based on HPLC+HRF dual-mode communication as claimed in claim 1, characterized in that, The HPLC+HRF dual-mode communication module further includes a UARTA circuit; the communication MCU is connected to the main control MCU via the UARTA circuit.

3. The user display unit based on HPLC+HRF dual-mode communication as claimed in claim 1, characterized in that, The HRF radio frequency circuit includes a radio frequency input / output terminal, a radio frequency switch chip and an antenna; the antenna is connected to the switch chip; and the switch chip is connected to the communication MCU through the radio frequency input / output terminal.

4. The user display unit based on HPLC+HRF dual-mode communication as claimed in claim 1, characterized in that, The HPLC carrier circuit includes a PLC carrier input / output terminal, a signal amplifier and a carrier coupling circuit; the carrier coupling circuit is connected to the signal amplifier; and the signal amplifier is connected to the communication MCU via the PLC carrier input / output terminal.

5. The user display unit based on HPLC+HRF dual-mode communication as claimed in claim 1, characterized in that, It also includes a power supply module; the power supply module is connected to the main control MCU.

6. The user display unit based on HPLC+HRF dual-mode communication according to claim 1, characterized in that: The keyboard module is a 3*4 key virtual keyboard or a physical keyboard.

7. The meter system based on HPLC+HRF dual-mode communication is characterized by: It comprises an electric meter and a user display unit based on HPLC+HRF dual-mode communication according to any one of claims 1 to 6; The electric meter is communicatively connected with the user display unit based on HPLC or HRF.

8. The meter system based on HPLC+HRF dual-mode communication according to claim 7, characterized in that: The electric meter includes an HPLC communication module, an HRF communication module or an HPLC+HRF dual-mode communication module.

Images