Communication protocol conversion device for meter and transmission network thereof

Abstract

The utility model aims to provide a communication protocol conversion device for a meter and a transmission network thereof, the communication protocol conversion device comprises a circuit board, the circuit board comprises a meter interaction module for reading meter data, a microprocessor for processing the meter data and a Bluetooth communication module for outputting the processed meter data; the microprocessor and the Bluetooth communication module are integrated SOC (system on chip) chips; the meter interaction module comprises a wireless receiving unit, an RS485 receiving circuit, an infrared receiving circuit and a pulse receiving circuit which are connected with the SOC chip. Meter data can be obtained through an infrared-to-Bluetooth mode, or a 485-to-Bluetooth mode, or a direct wireless reading mode, and the interference of the problem that wiring cannot be achieved due to long-distance wiring and elimination of meter installation environment in the verification and after-sale process is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to intelligent meter technical field more specifically, more specifically, it relates to a communication protocol conversion device for meter and transmission networking thereof. BACKGROUND

[0002] At present, most of the meters on the market are intelligent meters with wireless transmission function, which is convenient for remote meter reading. However, the wireless meters of different manufacturers are their own protocols, and different protocols cannot read data. When the meter needs to be calibrated and after-sales, the staff can only read the data of the meter through RS485 or use traditional methods such as USB to infrared, which needs to be connected with the meter data line, which is very inconvenient, and when the meter installation position is not convenient to reach, it cannot be calibrated and after-sales. SUMMARY

[0003] The utility model aims at providing a communication protocol conversion device for meter and transmission networking thereof, which can obtain meter data through infrared to Bluetooth, or 485 to Bluetooth, or direct wireless reading mode, avoid long distance wiring and eliminate the interference of meter installation environment leading to wiring problems during calibration and after-sales.

[0004] The utility model is realized by the following technical schemes:

[0005] In the first aspect, the embodiment of the present application provides a communication protocol conversion device for meter, which comprises:

[0006] The circuit board comprises a meter interaction module for reading meter data, a microprocessor for processing meter data, and a Bluetooth communication module for outputting processed meter data;

[0007] The microprocessor and the Bluetooth communication module are integrated SOC chips;

[0008] The meter interaction module comprises a wireless receiving unit and RS485 receiving circuit, infrared receiving circuit and pulse receiving circuit connected with the SOC chip.

[0009] As a preferred embodiment of the utility model, the wireless receiving unit comprises a control subunit and a radio frequency subunit, the control subunit is connected with the SOC chip, and the control subunit comprises an expandable interface.

[0010] As a preferred embodiment of the utility model, it further comprises a shell, the circuit board is fixedly arranged in the shell, a boss is arranged on the outside of the shell corresponding to the position of the infrared receiving circuit on the circuit board, and the boss is provided with a through infrared receiving plug hole and an infrared emitting plug hole along the height direction of the boss.

[0011] As the preferred of the utility model, the infrared receiving plug-in hole and the infrared transmitting plug-in hole are extended with expansion sections away from one end of the shell, and the inner diameter of the expansion section gradually increases along the direction away from the shell.

[0012] As the preferred of the utility model, the expansion section is provided with an expansion groove along the length direction, so that the inner wall of the expansion section can be deformed under pressure.

[0013] As the preferred of the utility model, the outer diameter of the expansion section gradually increases along the direction away from the shell, and the expansion section is further provided with a locking sleeve set in a gap with the minimum outer diameter of the expansion section.

[0014] As the preferred of the utility model, the locking sleeves of the two expansion sections are differentially arranged.

[0015] As the preferred of the utility model, the inner wall of the expansion section is provided with an elastic layer.

[0016] In the second aspect, the embodiment of the present specification provides a transmission networking, comprising:

[0017] A plurality of the above-mentioned communication protocol conversion devices for gauges, and at least one of the conversion devices is provided with a storage module.

[0018] In summary, the utility model has the following beneficial effects:

[0019] The communication protocol conversion device has multiple communication modes of RS485 wired communication, infrared communication, pulse communication and wireless communication, can select the communication mode suitable for the gauge to obtain gauge data, and the gauge data is processed by the microprocessor and transmitted to the mobile terminal of the staff through Bluetooth, so that the calibration and after-sales work can be conveniently performed. Meanwhile, the system-level chip with Bluetooth function is adopted, a plurality of interactive interfaces and various gauge interactive modules are connected by using the plurality of interactive interfaces, the production cost of the communication protocol conversion device is reduced, the integration is improved, the design difficulty of the circuit board is reduced, and the volume of the circuit board is reduced;

[0020] The control subunit shares the interface capacity pressure of the SOC chip, further includes a reserved expandable interface, and more communication modules can be externally connected, and the modular design facilitates continuous iteration and update of the product;

[0021] The infrared receiving plug-in hole and the infrared transmitting plug-in hole can be quickly plugged outside the infrared lamp of the gauge, which can support and fix on one hand, and form an infrared alignment channel that isolates external light interference on the other hand, thereby ensuring the quality of infrared communication. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1A structure diagram of a circuit board in a communication protocol conversion device for a meter in the embodiment;

[0023] Figure 2 A structure diagram of a shell in a communication protocol conversion device for a meter in the embodiment;

[0024] Figure 3 A structure diagram of an expansion section in the embodiment;

[0025] Figure 4 A structure diagram of a transmission network in the embodiment.

[0026] In the figure: 100, circuit board; 110, meter interaction module; 111, wireless receiving unit; 112, RS485 receiving circuit; 113, infrared receiving circuit; 114, pulse receiving circuit; 120, SOC chip; 121, microprocessor; 122, Bluetooth communication module; 200, shell; 210, boss; 211, infrared receiving plug hole; 212, infrared transmitting plug hole; 213, wire outlet; 214, expansion section; 2141, expansion groove; 300, transmission network; 310, conversion device; 311, storage module; 400, meter. DETAILED DESCRIPTION

[0027] The utility model will be described further in detail below in combination with the drawings.

[0028] The specific embodiment is only an explanation of the utility model, and it is not a limitation of the utility model, and those skilled in the art can make non-creative contribution modification according to the needs after reading the specification, but as long as it is within the scope of the claims of the utility model, it is protected by the patent law.

[0029] The smart meter is different due to customer demand, and most of the table types of wireless tables overseas are their own protocols, and the docking and data reading between different protocols.For the meter that has been installed or completed, we have made the device for the commonly used protocol on the market, which can avoid wiring and upload data through switching protocol to reduce the development of network platform or water meter testing platform, Bluetooth after-sales tool.

[0030] Embodiment 1:

[0031] As shown in Figure 1 A communication protocol conversion device for a meter, comprising a circuit board 100, the circuit board 100 includes a meter interaction module 110 for reading meter 400 data, a microprocessor 121 for processing meter 400 data, and a Bluetooth communication module 122 for outputting processed meter 400 data;

[0032] The microprocessor 121 and the Bluetooth communication module 122 are integrated into the SOC chip 120.

[0033] The meter interaction module 110 includes a wireless receiving unit 111, an RS485 receiving circuit 112, an infrared receiving circuit 113, and a pulse receiving circuit 114, all of which are connected to the SOC chip 120.

[0034] Illustratively, the communication protocol conversion device 310 has multiple communication modes, including RS485 wired communication, infrared communication, pulse communication, and wireless communication. The communication protocol conversion device 310 can be selected to adapt to the communication mode of the meter 400 to obtain meter 400 data. After the meter 400 data is processed by the microprocessor 121, the data is transmitted to the mobile terminal of the staff via Bluetooth, thereby facilitating the calibration and after-sales work. The system-level chip with Bluetooth function, such as the low-power Bluetooth chip of the GR533x series, is used to connect with various meter interaction modules 110, thereby reducing the production cost of the communication protocol conversion device 310, improving the integration, reducing the design difficulty of the circuit board 100, and reducing the size of the circuit board 100. The low-cost communication protocol conversion device 310 with full versatility can accelerate market popularization and eliminate communication protocol barriers.

[0035] Illustratively, the staff can connect with the communication protocol conversion device 310 via Bluetooth using a mobile terminal, determine the communication protocol of the meter according to the model of the meter installed on the communication protocol conversion device 310, switch the communication protocol conversion device 310 to the communication mode corresponding to the communication protocol of the meter, and send the meter 400 data of the meter 400 to the staff via Bluetooth using a mobile terminal, thereby completing the calibration and after-sales work. Long-distance wiring is not required, and the interference caused by the installation environment of the meter 400 that prevents wiring is eliminated.

[0036] In some embodiments of the present application, the wireless receiving unit 111 includes a control subunit and a radio frequency subunit. The control subunit is connected to the SOC chip 120, and the control subunit includes an expandable interface.

[0037] Illustratively, the SOC chip 120, which is a system-level chip, is an integrated circuit that integrates multiple components of a traditional computer or other electronic system into a single chip. The design of the SOC chip 120 allows complex functions to be implemented in a compact space while reducing power consumption and cost. The control subunit can share the interface capacity pressure of the SOC chip 120. The control subunit also includes a reserved expandable interface that can be externally connected to more communication modules, and a reserved expansion space for other communication modes that may appear in the future. The modular design facilitates continuous iteration and update of the product.

[0038] Exemplarily, the control subunit is of a model FM33LC043N, having a 32-bit ARM Cortex-M0+ core microcontroller for system control and management.

[0039] In some embodiments of the present application, as Figure 2 illustrated, the communication protocol conversion device 310 further comprises a housing 200, the circuit board 100 is fixedly arranged in the housing 200, and a boss 210 is arranged on the outside of the housing 200 corresponding to the position of the infrared receiving circuit 113 on the circuit board 100. The boss 210 is provided with a through infrared receiving plug hole 211 and an infrared emitting plug hole 212 along the height direction of the boss 210.

[0040] Illustratively, the shell plays a role of protecting and sealing the circuit board 100. Due to integration and modularization, the communication protocol conversion device 310 is very small in size and does not need excessive fixing and mounting structure. By arranging the infrared receiving plug hole 211 and the infrared emitting plug hole 212, the communication protocol conversion device 310 can be quickly plugged outside the infrared lamp of the meter, which plays a supporting and fixing role on the one hand and forms an infrared alignment channel that is isolated from external light interference, thereby ensuring the quality of infrared communication.

[0041] Embodiment 2:

[0042] As Figure 3 illustrated, the difference from embodiment 1 is that the infrared receiving plug hole 211 and the infrared emitting plug hole 212 are each extended with an expansion section 214 away from one end of the housing 200, and the inner diameter of the expansion section 214 gradually increases away from the housing 200.

[0043] Illustratively, the port part of the expansion section 214 is a horn-shaped guide inclined surface, which facilitates the quick plugging of the communication protocol conversion device 310 with the infrared lamp of the meter 400.

[0044] In some embodiments, the expansion section 214 is provided with an expansion groove 2141 along the length direction, so that the inner wall of the expansion section 214 can be deformed under pressure.

[0045] Illustratively, after the infrared lamp of the meter is inserted into the expansion section 214, the infrared lamp is clamped as the inner diameter of the expansion section 214 continuously decreases, so as to improve the stability of the connection. The infrared lamp interacts with the inner wall of the expansion section 214, and the expansion groove 2141 is arranged to enable the expansion section 214 to deform to a certain extent, which on the one hand reduces the wear of the infrared lamp by the inner wall of the expansion section 214, and on the other hand the tendency of the expansion section 214 to restore after deformation can also better fix the infrared lamp.

[0046] In some embodiments, the outer diameter of the expansion section 214 gradually increases away from the housing 200, and the expansion section 214 is further provided with a locking sleeve arranged in a gap away from the minimum part of the outer diameter of the expansion section 214.

[0047] Illustratively, after the infrared lamp of the meter is completely inserted into the expansion section 214, because the outer diameter of the expansion section 214 gradually increases in the direction away from the shell 200, the inflation groove 2141 is contracted by moving the locking sleeve towards the port, so that the inner diameter of the expansion section 214 is reduced, on the one hand, when the size of the infrared lamp is small, the clamping and fixing is formed by reducing the inner diameter of the expansion section 214, on the other hand, the force acting on the infrared lamp is reduced by the long-term deformation of the expansion section 214, and the locking sleeve is reinforced.

[0048] Illustratively, the locking sleeve can be a nut matched with the outer wall of the expansion section 214, or a snap ring, etc.

[0049] In some embodiments, the locking sleeves of the two expansion sections 214 are differentially arranged.

[0050] Illustratively, the differential arrangement can be a difference in locking mode, a difference in structure, a difference in color, etc., so as to distinguish the infrared receiving plug-in hole 211 and the infrared transmitting plug-in hole 212, and avoid plugging in reverse when plugging in the infrared lamp.

[0051] In some embodiments, the inner wall of the expansion section 214 is provided with an elastic layer.

[0052] Illustratively, the elastic layer can increase the rated friction force with the infrared lamp to prevent slipping, and on the other hand, it can avoid hard collision to cause wear of the infrared lamp and affect the quality of infrared communication. Such as a rubber layer, etc.

[0053] Embodiment 3:

[0054] As shown in Figure 4 A transmission networking 300 includes a plurality of communication protocol conversion devices 310, and the circuit board 100 of at least one conversion device 310 is provided with a storage module 311.

[0055] Illustratively, the communication protocol conversion device 310 with the storage module 311 can be set as a receiving device using Bluetooth or wireless communication, and the remaining communication protocol conversion devices 310 can be set as sending devices using Bluetooth or wireless communication. The receiving device stores the meter 400 data of each sending device in the storage module 311. For the same community or the same factory use scene, the staff does not need to acquire the meter 400 data point by point, but can collect the data through one communication protocol conversion device 310.

[0056] The above is only a preferred embodiment of the present application, and is not intended to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A communication protocol conversion device for meters, characterized in that: The circuit board (100) includes a meter interaction module (110) for reading meter (400) data, a microprocessor (121) for processing meter (400) data, and a Bluetooth communication module (122) for outputting processed meter (400) data. The microprocessor (121) and the Bluetooth communication module (122) are integrated SOC chips (120). The device interaction module (110) includes a wireless receiving unit (111) connected to the SOC chip (120), an RS485 receiving circuit (112), an infrared receiving circuit (113), and a pulse receiving circuit (114).

2. The communication protocol conversion device for a meter according to claim 1, characterized in that: The wireless receiving unit (111) includes a control subunit and a radio frequency subunit. The control subunit is connected to the SOC chip (120) and includes an expandable interface.

3. A communication protocol conversion device for a meter according to claim 1 or 2, characterized in that: It also includes a housing (200), the circuit board (100) is fixedly disposed inside the housing (200), and a boss (210) is provided on the outside of the housing (200) corresponding to the position of the infrared receiving circuit (113) on the circuit board (100). The boss (210) has a through infrared receiving plug hole (211) and an infrared emitting plug hole (212) along its own height direction.

4. A communication protocol conversion device for a meter according to claim 3, characterized in that: Both the infrared receiving socket (211) and the infrared emitting socket (212) have an expansion section (214) extending from the end away from the housing (200), and the inner diameter of the expansion section (214) gradually increases in the direction away from the housing (200).

5. A communication protocol conversion device for a meter according to claim 4, characterized in that: The expansion section (214) has an expansion groove (2141) along its length so that the inner wall of the expansion section (214) can deform under pressure.

6. A communication protocol conversion device for a meter according to claim 5, characterized in that: The outer diameter of the expansion section (214) gradually increases in the direction away from the housing (200), and the expansion section (214) is also provided with a locking kit with a gap set at the minimum outer diameter of the expansion section (214).

7. A communication protocol conversion device for a meter according to claim 6, characterized in that: The locking kits of the two expansion sections (214) are configured differently.

8. A communication protocol conversion device for a meter according to any one of claims 4-7, characterized in that: The inner wall of the expansion section (214) is provided with an elastic layer.

9. A transmission network, characterized in that: It includes multiple communication protocol conversion devices for watches as described in claim 1, and at least one of the conversion devices (310) has a circuit board (100) provided with a storage module (311).

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