CN217721270U - Multifunctional communication terminal with multiple communication modes - Google Patents
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- CN217721270U CN217721270U CN202123286352.2U CN202123286352U CN217721270U CN 217721270 U CN217721270 U CN 217721270U CN 202123286352 U CN202123286352 U CN 202123286352U CN 217721270 U CN217721270 U CN 217721270U
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Abstract
The utility model discloses a multifunctional communication terminal with multiple communication modes, belonging to the technical field of communication equipment, which is characterized in that the communication terminal comprises an access module for reading real-time data through an external PC end; the access module comprises a 485 communication circuit; the data acquisition module is used for realizing data acquisition of the downlink terminal; the data acquisition module comprises an LORA communication circuit; the storage processing module is used for storing and carrying out analog-to-digital conversion on the acquired data; the power supply module is used for providing electric energy for the data acquisition module, the storage processing module and the uploading module; the power supply module comprises a power circuit and a low-voltage stabilizing circuit; the I/0 terminal of the data acquisition module is connected with the I/0 terminal of the storage processing module, the I/0 terminal of the uploading module is connected with the I/0 terminal of the storage processing module, and the I/0 terminal of the storage processing module is connected with the I/0 terminal of the access module. The utility model discloses can support down and go upward real-time communication, have simple to operate, characteristics that the interference killing feature is strong.
Description
Technical Field
The utility model belongs to the technical field of communication equipment, concretely relates to communication terminal of multi-functional many communication modes.
Background
In recent years, with continuous improvement and development of technologies, power infrastructure and power economy of China are greatly developed, but with increasing power consumption scale, power supply safety and reliability of a power grid are difficult to guarantee, so that how to improve power supply quality and power supply service level is one of the main problems facing the development of the power industry of China. The current power consumption information acquisition system is divided into three layers: the system comprises a main station layer, a data acquisition layer and acquisition point detection equipment. The main station is responsible for functions of monitoring, screening, managing, applying and the like of the data of the whole system, mainly uses provinces as units in China, and the operation mode of the main station is generally centralized. After each city unit is connected with the master station by using a remote channel, information is collected or an instruction is issued. The data acquisition layer is used as an intermediate layer, the data acquisition layer is generally communicated with the main station through communication modes such as GPRS, CMDA and Ethernet, the data acquisition layer is communicated with the acquisition point detection equipment, due to the fact that a plurality of scenes are provided, communication means are more various, and the data acquisition layer is more applied to the current fields such as power line carrier waves, RS-485 buses and the like.
The communication methods mainly applied at present include: wireless private power networks, fiber optic ethernet, low voltage power line carriers, etc. The 230MHZ private network is a radio frequency channel exclusive to the power system, and the use right of all the power enterprises is ensured, so that the uniqueness and the stability of the use of the system channel are ensured. However, in practical application, the initial networking cost of the 230MHZ private network is higher. The base station radio station needs a site for construction, the machine room needs capital for construction, and the cost of the terminal equipment is higher than that of other schemes. And certain professional skills are needed for operation and maintenance, the system reliability depends on the maintenance condition, and the requirement on the technical level of personnel is high.
The optical fiber Ethernet has four advantages, namely compatibility, which follows national standards of electric power and computer industries, and ensures the compatibility of a channel and a system and the compatibility of a communication protocol; the safety and the reliability are high, and the safety and the anti-interference capability are high when the optical fiber Ethernet data serving as the wired special network are transmitted; the real-time performance is realized, and the communication rate of the optical fiber Ethernet exceeds the downlink communication rate at present, so that the real-time transmission of data can be realized; and fourthly, the resource utilization is wide, the coverage of the optical fibers in the urban districts is basically finished at present, and the construction requirements can be met by laying a small amount of the optical fibers on the existing optical fiber coverage net. But the disadvantages are several, one is that each limited network needs to occupy one IP address; secondly, a line network is laid to increase the construction workload; thirdly, the master control right of the system cannot be mastered, and the network only can wait for the operator to process when a fault occurs; and fourthly, the operator needs to be paid regularly according to the access quantity of the terminals, and the later-stage operation cost is higher.
The low-voltage power line carrier has the advantages of reconstruction of a construction scheme, low cost and easy operation and maintenance; the method has the defects that the meter reading is unstable, carrier signals are easily interfered by electricity utilization conditions, the communication rate is limited by carrier communication, electric power enterprises have developed the test point project of carrying out broadband carriers on a low-voltage power line at present, the project adopts 2-3MHZ frequency band carriers, and an OFDM spread spectrum modulation mode is adopted. Since the communication still relies on the power carrier line, it is still affected by the co-ground crosstalk of the station, the cable impedance and impedance mismatch of the line, the grid harmonic interference and the environment.
In summary, the communication mode of the existing power information acquisition system cannot simultaneously satisfy real-time communication, convenient maintenance, strong anti-interference capability and low operation cost.
SUMMERY OF THE UTILITY MODEL
The utility model discloses not enough to prior art exists, provide a communication terminal of multi-functional many communication modes, can support down and go upward the requirement that real-time communication, simple to operate, interference killing feature are strong.
The utility model aims at providing a communication terminal of multi-functional many communication modes, include:
the access module is used for reading real-time data through an external PC (personal computer) terminal; the access module comprises a 485 communication circuit;
the data acquisition module is used for realizing data acquisition of the downlink terminal; the data acquisition module comprises an LORA communication circuit;
the storage processing module is used for storing and carrying out analog-to-digital conversion on the acquired data; the storage processing module comprises a main control circuit, a clock circuit and a reset circuit;
the power supply module is used for providing electric energy for the data acquisition module, the storage processing module and the uploading module;
the 4G communication circuit receives a plurality of point equipment data sent by the LORA communication circuit through the wireless LORA node; wherein:
the power supply module comprises a power circuit and a low-voltage stabilizing circuit; the output terminal of the low-voltage stabilizing circuit is respectively connected with power terminals of the data acquisition module, the storage processing module and the uploading module, the I/0 terminal of the data acquisition module is connected with the I/0 terminal of the storage processing module, the I/0 terminal of the uploading module is connected with the I/0 terminal of the storage processing module, and the I/0 terminal of the storage processing module is connected with the I/0 terminal of the access module.
Preferably, the main control circuit comprises an STM32F103C8T6 chip, a data storage chip, a crystal oscillator, a first capacitor and a first resistor; one end of the crystal oscillator is connected with the first capacitor in parallel and then grounded, and the other end of the crystal oscillator is connected with the STM32F103C8T6 chip; the STM32F103C8T6 chip is grounded through a first resistor, and the data storage chip is connected with the STM32F103C8T6 chip;
preferably, the clock circuit comprises an SD3078 clock chip, a second resistor, a second capacitor and a power supply; the clock chip is connected with the STM32F103C8T6 chip and provides a reference clock for the main control chip.
Preferably, the reset circuit comprises a third resistor, a third capacitor, a 3.3V power supply and a key; the 3.3V power supply is connected with the third capacitor and the third resistor in series, and the keys are connected with the third capacitor in parallel to realize low-level reset.
Preferably, the 485 communication circuit comprises a fourth resistor, a fifth resistor, a fourth capacitor, an optical coupler and a TVS tube; the optical coupler realizes communication isolation between the STM32F103C8T6 chip and the 485 chip.
Preferably, the LORA communication circuit comprises an SC-RLF1P1B chip and a radio frequency seat; and the SC-RLF1P1B chip is connected with the STM32F103C8T6 chip to realize communication with a downlink terminal.
Preferably, the 4G communication circuit comprises an EC200S-CN chip, a light emitting diode and a triode for judging whether the communication is normal or not; and the EC200S-CN chip is connected with the STM32F103C8T6 chip to further communicate with the master station.
Preferably, the low-voltage stabilizing circuit comprises an MIC29302WU stabilizing chip and a filter capacitor; the input end of the MIC29302WU voltage stabilizing chip is connected with a battery, and the output end of the MIC29302WU voltage stabilizing chip is connected with a filter capacitor in parallel.
Preferably, the power supply circuit comprises 2 sets of direct current 5V and 3.3V power supplies.
The beneficial effect of this application is:
through adopting the technical scheme, the utility model discloses can support the purpose of going down and going upward real-time communication, have simple to operate, characteristics that the interference killing feature is strong simultaneously.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.
Fig. 1 is a circuit block diagram of a preferred embodiment of the present invention;
fig. 2 is a main control circuit diagram in a preferred embodiment of the present invention;
fig. 3 is a circuit diagram of a clock circuit in a preferred embodiment of the present invention;
fig. 4 is a 485 communication circuit diagram in a preferred embodiment of the invention;
fig. 5 is a diagram of a LORA communication circuit in a preferred embodiment of the present invention;
fig. 6 is a circuit diagram of 4G communication in the preferred embodiment of the present invention;
FIG. 7 is a diagram of a low voltage regulator circuit according to a preferred embodiment of the present invention;
fig. 8 is a power circuit diagram in a preferred embodiment of the invention.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort shall fall within the protection scope of the present application.
It should be noted that the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover non-exclusive inclusions, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1, a multifunctional communication terminal with multiple communication modes supports multiple protocols for downlink data acquisition and uplink data real-time transmission; the method comprises the following steps: the device comprises an access module, a data acquisition module, a storage processing module, a power supply module and an uploading module; wherein:
the access module mainly comprises a main control circuit, a clock circuit, a reset circuit and a 485 communication circuit, and can read real-time data through an external PC (personal computer) terminal.
The data acquisition module mainly comprises an LORA communication circuit, and the acquisition of the downlink terminal data is realized through a special communication channel and a 645 communication protocol.
The storage processing module mainly comprises a main control circuit, a clock circuit and a reset circuit, and is used for storing the acquired data and converting the data from analog quantity to digital quantity.
The power supply module mainly comprises a power circuit and a voltage stabilizing circuit, and ensures that each module of the communication terminal stably operates.
The power supply module comprises a power circuit and a low-voltage stabilizing circuit; the output terminal of the low-voltage stabilizing circuit is respectively connected with power terminals of the data acquisition module, the storage processing module and the uploading module, the I/0 terminal of the data acquisition module is connected with the I/0 terminal of the storage processing module, the I/0 terminal of the uploading module is connected with the I/0 terminal of the storage processing module, and the I/0 terminal of the storage processing module is connected with the I/0 terminal of the access module.
Referring to fig. 2 to 8 of the drawings,
the main control circuit comprises an STM32F103C8T6 chip, a data storage chip, an 8MHZ crystal oscillator, a 12PF capacitor and a 1k resistor. The crystal oscillator is connected with the 12PF capacitor in parallel and then is grounded, and the other end of the crystal oscillator is connected with the STM32F103C8T6 chip. The other end ground connection after 1K resistance and STM32F103C8T6 chip are connected, and the data storage chip is connected with STM32F103C8T6 chip, realizes the storage and the conversion of data.
The clock circuit comprises an SD3078 clock chip, a 10k resistor, a 100NF capacitor and a 3.3V power supply. The clock chip is connected with the STM32F103C8T6 chip and provides a reference clock for the main control chip.
The reset circuit comprises a 10k resistor, a 100NF capacitor, a 3.3V power supply and a key. The 3.3V power supply is connected with the capacitor resistor in series, and the key is connected with the capacitor in parallel. And realizing low level reset.
The 485 communication circuit comprises a 1K resistor, a 4.7K resistor, a 100NF capacitor, an optical coupler and a TVS tube; the optical coupler realizes communication isolation of the STM32F103C8T6 chip and the 485 chip, and the TVS tube can effectively prevent overvoltage damage of the circuit.
The LORA communication circuit comprises an SC-RLF1P1B chip and a radio frequency base; and the SC-RLF1P1B chip is connected with the STM32F103C8T6 chip to realize communication with a downlink terminal.
The 4G communication circuit comprises an EC200S-CN chip, a light-emitting diode, a triode, a resistor and a capacitor; the EC200S-CN chip is connected with the STM32F103C8T6 chip to realize communication with the master station, and whether the communication is normal is judged by observing the state of the light-emitting diode.
The low-voltage stabilizing circuit comprises an MIC29302WU stabilizing chip, a filter capacitor and a resistor; the MIC29302WU regulator chip input is connected to the battery and then connected in parallel with the filter capacitor to provide a stable voltage output.
A power supply circuit: a power supply capable of providing 2 groups of direct current 5V and a group of direct current 3.3V is selected as a power supply module to supply power to the whole communication terminal.
The utility model discloses a theory of operation does:
LORA communication circuit adopts the LORA radio frequency communication technique, transmits the equipment data of the multiple points of distribution dispersion formula to 4G communication circuit through wireless LORA node, then transmits the server to realize remote data acquisition and control.
The LORA communication circuit supports up to 100 non-collection nodes, a plurality of serial devices are monitored simultaneously, and the radius of a monitoring range is up to 3Km. The utility model discloses not only have data storage, transmit etc. data gateway's basic function, the biggest characteristics have also been integrated to multiple communication mode. The data communication between the field device communication system and the manual operation communication system is realized, and the field device communication system is used as a main communication information bridge and a transfer station.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (9)
1. A communication terminal of multi-functional many communication modes, characterized by, include at least:
the access module is used for reading real-time data through an external PC (personal computer) terminal; the access module comprises a 485 communication circuit;
the data acquisition module is used for realizing data acquisition of the downlink terminal; the data acquisition module comprises an LORA communication circuit;
the storage processing module is used for storing and carrying out analog-to-digital conversion on the acquired data; the storage processing module comprises a main control circuit, a clock circuit and a reset circuit;
the power supply module is used for providing electric energy for the data acquisition module, the storage processing module and the uploading module;
the 4G communication circuit receives a plurality of pieces of equipment data sent by the LORA communication circuit through a wireless LORA node; wherein:
the power supply module comprises a power circuit and a low-voltage stabilizing circuit; the output terminal of the low-voltage stabilizing circuit is respectively connected with power terminals of the data acquisition module, the storage processing module and the uploading module, the I/0 terminal of the data acquisition module is connected with the I/0 terminal of the storage processing module, the I/0 terminal of the uploading module is connected with the I/0 terminal of the storage processing module, and the I/0 terminal of the storage processing module is connected with the I/0 terminal of the access module.
2. The multi-functional multi-communication mode communication terminal according to claim 1, wherein: the main control circuit comprises an STM32F103C8T6 chip, a data storage chip, a crystal oscillator, a first capacitor and a first resistor; one end of the crystal oscillator is connected with the first capacitor in parallel and then grounded, and the other end of the crystal oscillator is connected with the STM32F103C8T6 chip; the STM32F103C8T6 chip is grounded through a first resistor, and the data storage chip is connected with the STM32F103C8T6 chip.
3. The multi-functional multi-communication mode communication terminal according to claim 2, wherein: the clock circuit comprises an SD3078 clock chip, a second resistor, a second capacitor and a power supply; the clock chip is connected with the STM32F103C8T6 chip and provides a reference clock for the main control chip.
4. The multi-functional multi-communication mode communication terminal according to claim 3, wherein: the reset circuit comprises a third resistor, a third capacitor, a 3.3V power supply and a key; the 3.3V power supply is connected with the third capacitor and the third resistor in series, and the keys are connected with the third capacitor in parallel to realize low-level reset.
5. The multifunctional communication terminal with multiple communication modes as claimed in claim 4, wherein: the 485 communication circuit comprises a fourth resistor, a fifth resistor, a fourth capacitor, an optical coupler and a TVS (transient voltage suppressor) tube; and the optical coupler realizes communication isolation between the STM32F103C8T6 chip and the 485 chip.
6. The multi-functional multi-communication mode communication terminal according to claim 5, wherein: the LORA communication circuit comprises an SC-RLF1P1B chip and a radio frequency seat; and the SC-RLF1P1B chip is connected with the STM32F103C8T6 chip to realize communication with a downlink terminal.
7. The multi-functional multi-communication mode communication terminal according to claim 6, wherein: the 4G communication circuit comprises an EC200S-CN chip, a light emitting diode and a triode for judging whether the communication is normal or not; the EC200S-CN chip is connected with the STM32F103C8T6 chip to communicate with the master station.
8. The multi-functional multi-communication mode communication terminal according to claim 7, wherein: the low-voltage stabilizing circuit comprises an MIC29302WU voltage stabilizing chip and a filter capacitor; the input end of the MIC29302WU voltage stabilizing chip is connected with a battery, and the output end of the MIC29302WU voltage stabilizing chip is connected with a filter capacitor in parallel.
9. The multi-functional multi-communication mode communication terminal according to claim 8, wherein: the power supply circuit comprises 2 groups of direct current 5V and a group of direct current 3.3V power supplies.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123286352.2U CN217721270U (en) | 2021-12-24 | 2021-12-24 | Multifunctional communication terminal with multiple communication modes |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123286352.2U CN217721270U (en) | 2021-12-24 | 2021-12-24 | Multifunctional communication terminal with multiple communication modes |
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| CN217721270U true CN217721270U (en) | 2022-11-01 |
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| CN202123286352.2U Active CN217721270U (en) | 2021-12-24 | 2021-12-24 | Multifunctional communication terminal with multiple communication modes |
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Effective date of registration: 20240910 Address after: No. 11D-1108, Building A, Hechuan Building, No. 235 Nanjing Road, Nanyingmen Street, Heping District, Tianjin, 300020 Patentee after: TIANJIN ELECTRIC POWER TECHNOLOGY DEVELOPMENT Co.,Ltd. Country or region after: China Address before: 300409 No. 8 Liaohe North Road, Beichen science and Technology Park, Beichen District, Tianjin Patentee before: Tianjin Sanyuan Power Intelligent Technology Co.,Ltd. Country or region before: China |
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