CN221202582U - Novel CAN communication module - Google Patents
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- CN221202582U CN221202582U CN202323252080.3U CN202323252080U CN221202582U CN 221202582 U CN221202582 U CN 221202582U CN 202323252080 U CN202323252080 U CN 202323252080U CN 221202582 U CN221202582 U CN 221202582U
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Abstract
The utility model discloses a CAN communication module, which relates to the technical field of electric power, and is applied to an electric power carrier circuit. The utility model realizes Bluetooth communication with external equipment, supports terminal equipment to acquire data through a power carrier, collects data and reports the data through the CAN bus and the expansion equipment, and is convenient for the external terminal equipment to manage and control the data.
Description
Technical Field
The utility model relates to the technical field of electric power, in particular to a novel CAN communication module.
Background
In recent years, with the rapid increase of social economy in China, national living standards are remarkably improved, and various power users have higher requirements on the reliability of power supply and distribution and the quality of power supply. The power distribution system is used as an important link in the power system, wherein the power distribution system is directly connected with a user and distributes electric energy for the user, and whether the normal and stable operation of the power distribution system directly affects aspects of daily production and living of people, so that the power distribution system has great significance in intelligent monitoring.
The traditional power carrier line has full communication speed between devices, and has low communication stability and needs improvement.
Disclosure of Invention
The utility model aims to overcome the defects of the technical problems, and provides a novel CAN communication module which CAN realize CAN data acquisition and reporting processing of power grid monitoring equipment and is convenient for external terminal equipment to manage and control data.
The novel CAN communication module is applied to an electric power carrier circuit and comprises a switch power supply module, a control module, a display module, a key module, a communication module, a storage module, a remote signaling module and a clock module which are respectively connected with the control module; the switch power supply module is used for supplying power to each module of the communication module; the communication module and the external terminal realize data interaction.
Further, the switching power supply module comprises a lightning protection circuit, a rectifying circuit, an electromagnetic interference filter circuit, a transformer power conversion circuit, an output filter circuit and a linear voltage stabilizing circuit which are connected in sequence; the lightning protection circuit is a single-phase parallel lightning protection surge circuit based on a piezoresistor and a ceramic gas discharge tube; the output end of the electromagnetic interference filter circuit is also connected with a power supply enabling circuit, the power supply enabling circuit is realized based on a PN8145T alternating-current-direct current conversion chip, a pulse width modulation controller and a MOSFET are integrated in the PN8145T alternating-direct current conversion chip, and the MOSFET is used as an enabling end of the power supply enabling circuit; the output filter circuit is used for filtering ripple waves in the rectified output voltage; the linear voltage stabilizing circuit is realized based on BL9198-33 chips and is used for converting the voltage required by the communication module and providing a voltage signal required by output side equipment.
Further, the control module comprises a singlechip minimum system, the singlechip minimum system comprises a reset circuit and a singlechip, and the singlechip is connected with the reset circuit; the singlechip is realized based on STM32F401RCT6 chip.
Further, the display module comprises an LED display of the power indicator lamp, the running indicator lamp and the communication indicator lamp.
Further, the key module comprises a reset key circuit; the reset key circuit is used for starting the Bluetooth communication function by short pressing and restarting the device by long pressing (> 3 s).
Further, the communication module comprises a CAN communication circuit, a Bluetooth communication circuit, a carrier communication circuit and a 485 local communication circuit, wherein the CAN communication circuit is realized based on an MCP2515-I/ST chip and is used for collecting and managing static data of access equipment and reporting events; the Bluetooth communication circuit is realized based on iPAC-2220-E chip and is used for passively receiving a data reading instruction or a parameter setting instruction sent by external Bluetooth equipment and actively responding to the external instruction; the carrier communication circuit IS realized based on a MAX485 chip and an IS3722LS isolation chip and IS used for actively receiving and transmitting data; 485 local communication circuit IS realized based on MAX485 chip and IS3722HS isolation chip, IS used for actively receiving and transmitting data.
Further, the memory module is realized based on an AT24LC512 chip and a W25Q16 chip, the AT24LC512 chip is used for storing parameter data, and the W25Q16 chip is used for storing upgrade package data for the communication module and the expansion module.
Further, the remote signaling module is used for identifying the level signal of the external IO port.
Further, the clock module is realized based on an RX8025T chip and is used for reading and writing time data.
The utility model has the beneficial effects that:
The utility model CAN realize the data transmission of the expressway, has low time delay and CAN mount a plurality of devices on the CAN bus to realize the communication with the plurality of devices.
According to the utility model, the data interaction between the communication module and the expansion equipment is utilized to realize data acquisition such as voltage and current and acquisition of current waveform data, when a power supply line is powered down or fails, the communication module acquires the reporting data of the expansion equipment, and the corresponding failure reporting is carried out on the outside through the carrier circuit, so that the acquisition of Bluetooth wireless data and remote data upgrading are supported.
Drawings
Fig. 1 is a schematic block diagram of the connection of the communication module of the present utility model.
Fig. 2 is a diagram of chip pins of the control module of the present utility model.
Fig. 3 is a circuit diagram of the switching power supply module of the present utility model.
Fig. 4 is a circuit diagram of a display module of the present utility model.
Fig. 5 is a circuit diagram of a key module of the present utility model.
Fig. 6 (1) is a CAN communication circuit diagram of the communication module of the present utility model.
Fig. 6 (2) is a bluetooth communication circuit diagram of the communication module according to the present utility model.
Fig. 6 (3) is a carrier communication circuit diagram of the communication module of the present utility model.
Fig. 6 (4) is a 485 local communication circuit diagram of the communication module of the present utility model.
Fig. 7 is a circuit diagram of a memory module of the present utility model.
Fig. 8 is a circuit diagram of a clock module of the present utility model.
Detailed Description
The technical scheme of the utility model is further specifically described by the following specific embodiments with reference to the accompanying drawings:
The application discloses a novel CAN communication module which is arranged at the front ends of a power distribution network and power distribution equipment and is used for acquiring electric energy data on a power line and data of electric signal measurement equipment, namely, monitoring the circuit state and fault diagnosis of a power distribution system in a power grid power supply side.
As shown in fig. 1, a novel CAN communication module is applied to an electric carrier circuit, and the communication module comprises a switching power supply module, a control module, and a display module, a key module, a communication module, a storage module, a remote signaling module and a clock module which are respectively connected with the control module; the switch power supply module is used for supplying power to each module of the communication module; the communication module and the external terminal realize data interaction.
The control module is a control core of the communication module provided by the utility model and comprises a singlechip minimum system, wherein the singlechip minimum system comprises a reset circuit and a singlechip, and the singlechip is connected with the reset circuit. The singlechip is realized based on an STM32F401RCT6 chip, and the schematic diagram of the pins is shown in FIG. 2.
The switch power supply module is used for supplying power to each module of the communication module. As shown in fig. 3, the switching power supply module includes a lightning protection circuit, a rectifying circuit, an electromagnetic interference filter circuit, a transformer power conversion circuit, an output filter circuit and a linear voltage stabilizing circuit which are sequentially connected. The lightning protection circuit is a single-phase parallel lightning protection surge circuit based on a piezoresistor and a ceramic gas discharge tube; the output filter circuit is used for filtering ripple waves in the rectified output voltage; the output end of the electromagnetic interference filter circuit is also connected with a power supply enabling circuit, the power supply enabling circuit is realized based on a PN8145T alternating-current-direct current conversion chip, a pulse width modulation controller and a MOSFET power tube are integrated in the PN8145T alternating-direct current conversion chip, and the MOSFET is used as an enabling end of the power supply enabling circuit; the linear voltage stabilizing circuit is realized based on BL9198-33 chips and is used for converting the voltage required by the communication module, and in the embodiment, the linear voltage stabilizing circuit is used for converting the voltage of 5.5V of the power supply battery into the voltage of 3.3V. Because the specific connection relationship of each circuit of the module and the structure and principle of the other modules are common circuits in the electronic technical field, the detailed description is not provided herein.
The display module is used for providing the LED display function of each functional state of the communication module, and comprises a power indicator, an operation indicator and an LED display of the communication indicator. As shown in fig. 4, the display device comprises an LED driving circuit, and the display function of the LED is realized by controlling the high and low levels of the IO port through the main chip.
The key module is used for starting Bluetooth and resetting the communication module, as shown in fig. 5, and comprises a reset key circuit, wherein the reset key circuit is used for starting the Bluetooth communication function by short-pressing, and restarting the device by long-pressing (> 3 s), and after the key pressing state is detected, the main chip recognizes the short-pressing and long-pressing effects and respectively correspondingly starts the Bluetooth function and the reset communication module function.
The communication module realizes data interaction with the external terminal and the expansion equipment and comprises a CAN communication circuit, a Bluetooth communication circuit, a carrier communication circuit and a 485 local communication circuit.
As shown in fig. 6 (1), the CAN communication circuit is implemented based on an MCP2515-I chip, and is used for collecting and managing static data of the access device and reporting events, and driving the MCP2515-I to implement communication with external CAN devices in an SPI manner.
As shown in fig. 6 (2), the bluetooth communication circuit is implemented based on iPAC-2220-E chip, and is configured to passively receive a data reading instruction or a parameter setting instruction sent by an external bluetooth device (such as a bluetooth palm machine, a mobile phone, etc.), and actively respond to an external instruction, for example: and responding to the instruction sent by the Bluetooth equipment or responding to whether the setting of the read data or response parameters required by the Bluetooth equipment is successful. In practical application scenario, the communication carrier of the external device is considered to select a corresponding communication circuit, and in general, the bluetooth communication circuit is mainly used for observing at the user side for wireless communication, so as to facilitate the operation of bluetooth devices such as mobile phones and the like
As shown in fig. 6 (3), the carrier communication circuit IS implemented based on a MAX485 chip and an IS3722LS isolation chip, and IS used for actively transmitting and receiving data.
As shown in fig. 6 (4), the 485 local communication circuit IS realized based on a MAX485 chip and an IS3722HS isolation chip, and IS used for actively receiving and transmitting data, and IS mainly used for the communication connection of relevant test and 485 equipment in factories.
As shown in fig. 7, the storage module is implemented based on an AT24LC512 chip and a W25Q16 chip, the storage module uses the AT24LC512 chip to store parameters (such as switching power data and parameter data) and event record data, and the storage module uses the storage space of the W25Q16 chip to store program code files of software upgrades of the communication module or the expansion device. The singlechip uses an I2C bus and an SPI bus to operate the memory chip.
As shown in fig. 8, the clock module is implemented based on an RX8025T chip, and communicates with the single chip microcomputer in an I2C manner, and is used for reading and writing time data.
The remote signaling module is a conventional circuit, and its structure and function are common in the market and will not be described in detail here
The whole working principle of the communication module of the utility model is as follows:
The communication module is used for realizing data acquisition of real-time voltage and current and the like of the expansion equipment and reporting abnormal states of a power grid line, and the communication module is arranged in the communication module to support wireless Bluetooth communication and remote upgrading; displaying a communication working state and a module running state through a display module; starting a Bluetooth and resetting communication module through a key module; and acquiring the running time by using a clock module, and storing parameters and firmware for upgrading by using a storage module.
Although embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by those skilled in the art without departing from the spirit and principles of the utility model, and any simple modification, equivalent variation and modification of the above embodiments in light of the technical principles of the utility model may be made within the scope of the present utility model.
Claims (9)
1. The novel CAN communication module is characterized by being applied to an electric power carrier circuit, and comprises a switching power supply module, a control module, a display module, a key module, a communication module, a storage module, a remote signaling module and a clock module which are respectively connected with the control module; the switch power supply module is used for supplying power to each module of the communication module; and the communication module and the external terminal realize data interaction.
2. The novel CAN communication module of claim 1, wherein the switching power supply module comprises a lightning protection circuit, a rectifying circuit, an electromagnetic interference filter circuit, a transformer power conversion circuit, an output filter circuit and a linear voltage stabilizing circuit which are connected in sequence; the lightning protection circuit is a single-phase parallel lightning protection surge circuit based on a piezoresistor and a ceramic gas discharge tube; the output end of the electromagnetic interference filter circuit is also connected with a power supply enabling circuit, the power supply enabling circuit is realized based on a PN8145T alternating-current-direct current conversion chip, a pulse width modulation controller and a MOSFET are integrated in the PN8145T alternating-direct current conversion chip, and the MOSFET is used as an enabling end of the power supply enabling circuit; the output filter circuit is used for filtering ripple waves in the rectified output voltage; the linear voltage stabilizing circuit is realized based on BL9198-33 chips and is used for converting the voltage required by the communication module and providing a voltage signal required by output side equipment.
3. The novel CAN communication module of claim 1, wherein the control module comprises a single-chip microcomputer minimum system, the single-chip microcomputer minimum system comprises a reset circuit and a single-chip microcomputer, and the single-chip microcomputer is connected with the reset circuit; the singlechip is realized based on an STM32F401RCT6 chip.
4. The novel CAN communication module of claim 1, wherein the display module comprises a power indicator, an operation indicator, and an LED display of the communication indicator.
5. The novel CAN communication module of claim 1, wherein the key module comprises a reset key circuit; the reset key circuit is used for starting the Bluetooth communication function by short pressing and restarting the device by long pressing (more than 3 s).
6. The novel CAN communication module of claim 1, wherein the communication module comprises a CAN communication circuit, a Bluetooth communication circuit, a carrier communication circuit and a 485 local communication circuit, wherein the CAN communication circuit is realized based on an MCP2515-I/ST chip and is used for collecting and managing static data of access equipment and reporting events; the Bluetooth communication circuit is realized based on iPAC-2220-E chip and is used for passively receiving a data reading instruction or a parameter setting instruction sent by external Bluetooth equipment and actively responding to the external instruction; the carrier communication circuit IS realized based on a MAX485 chip and an IS3722LS isolation chip and IS used for actively receiving and transmitting data; the 485 local communication circuit IS realized based on an MAX485 chip and an IS3722HS isolation chip and IS used for actively receiving and transmitting data.
7. The novel CAN communication module of claim 1, wherein the memory module is implemented based on an AT24LC512 chip and a W25Q16 chip, the AT24LC512 chip is configured to store parameter data, and the W25Q16 chip is configured to store upgrade package data for the communication module and the expansion module.
8. The novel CAN communication module of claim 1, wherein the telemetry module is configured to identify a level signal from an external IO port.
9. The novel CAN communication module of claim 1, wherein the clock module is implemented based on an RX8025T chip for reading and writing time data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323252080.3U CN221202582U (en) | 2023-11-30 | 2023-11-30 | Novel CAN communication module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323252080.3U CN221202582U (en) | 2023-11-30 | 2023-11-30 | Novel CAN communication module |
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| Publication Number | Publication Date |
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| CN221202582U true CN221202582U (en) | 2024-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202323252080.3U Active CN221202582U (en) | 2023-11-30 | 2023-11-30 | Novel CAN communication module |
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| CN (1) | CN221202582U (en) |
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