CN211429004U - Intelligent Internet of things three-phase four-wire multifunctional power monitoring terminal - Google Patents
Intelligent Internet of things three-phase four-wire multifunctional power monitoring terminal Download PDFInfo
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Abstract
The utility model discloses an intelligent internet of things three-phase four-wire multifunctional power monitoring terminal, which comprises a memory and a microprocessor module, and further comprises a three-phase four-wire electric energy metering module, a switching power supply module, a switching-on/off control and state feedback module, an LCD display module, a wireless and wired communication module and an intelligent sensor module which are respectively connected with the memory and the microprocessor module; the switch power supply module respectively supplies power to the memory and microprocessor module, the three-phase four-wire electric energy metering module, the switching-on/off control and state feedback module, the LCD display module, the wireless and wired communication module and the intelligent sensor module. The utility model discloses a remote meter reading function of three-phase four-wire supply distribution network, the measurement is accurate timely, has intelligent perception function and realizes safety control, realizes that remote early warning control tripping operation and remote prepayment are recharged and the arrearage tripping operation improves power consumption safety greatly, and product architecture optimization, simple structure, the energy consumption is low, has very high price/performance ratio.
Description
Technical Field
The utility model relates to an electric power thing networking adapted electricity control field, in particular to multi-functional electric power monitor terminal of intelligence thing networking three-phase four-wire.
Background
Along with the rapid development of economy in China, the urbanization construction is faster and faster, more building buildings appear, the electric energy use demand is increased sharply day by day, the construction of the intelligent power distribution and utilization field can not keep up with the matching, especially the power grid in China develops the demand towards the leading technology direction of digitalization, artificial intelligence, Internet of things, big data, cloud computing and the like, however, in the aspect of power distribution and utilization monitoring terminal equipment of the power internet of things, most of the power distribution and utilization monitoring terminal equipment is in the states of relatively single function, high cost point pair, low accurate metering precision, untimely fault monitoring and the like, because the electric fire disaster is caused by the faults of the three-phase four-wire power supply and distribution line, the switch equipment and the electric load, the accident rate of the fire disaster of the large-scale building is the first, the life and property safety of people is seriously threatened, and the extremely negative influence is brought to the national economic construction, therefore, the safety monitoring of the three-phase four-wire power supply and distribution line for intelligent power distribution of the power internet of things needs to be further improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome prior art's shortcoming and not enough, provide a multi-functional electric power monitor terminal of intelligence thing networking three-phase four-wire, this monitor terminal can overcome current three-phase four-wire electric power monitor terminal's the problem that the hardware structure is complicated, with high costs not enough, can reach the effect that hardware structure simplifies, cost reduction, dependable performance are durable.
The purpose of the utility model is realized through the following technical scheme:
an intelligent Internet of things three-phase four-wire multifunctional power monitoring terminal comprises a memory, a microprocessor module, a three-phase four-wire electric energy metering module, a switching power supply module, an on-off control and state feedback module, an LCD (liquid crystal display) module, a wireless and wired communication module and an intelligent sensor module, wherein the three-phase four-wire electric energy metering module, the switching power supply module, the on-off control and state feedback module, the wireless and wired communication module and the intelligent sensor module are; the switch power supply module respectively supplies power to the memory and microprocessor module, the three-phase four-wire electric energy metering module, the switching-on/off control and state feedback module, the LCD display module, the wireless and wired communication module and the intelligent sensor module;
the memory and microprocessor module is used for realizing data storage and intelligent metering control program execution;
the three-phase four-wire electric energy metering module is used for calculating sampled original signal data to realize advanced electric energy metering and leakage detection functions, transmitting each item of electric energy data obtained through calculation to the memory and the microprocessor module for reading, and simultaneously writing the chip of the three-phase four-wire electric energy metering module by the memory and the microprocessor module for configuring a calibration coefficient register;
the switching-on/off control and state feedback module is used for receiving and executing a switching-on/off control instruction sent by the memory and microprocessor module and transmitting the switching-on/off state feedback to the memory and microprocessor module;
the LCD display module is used for receiving data display instructions of the memory and the microprocessor module;
the wireless and wired communication module is used for realizing remote real-time communication interconnection between each item of data of the memory and the microprocessor module and the upper computer and short-range line-of-sight communication;
the intelligent sensor module is used for monitoring the temperature of the 4-way cable in real time and sensing whether the shell of the monitoring terminal is disassembled.
The memory and microprocessor module comprises a Flash memory and a CPU microprocessor; the CPU microprocessor is in data read-write communication with the Flash memory through the SPI type serial port; CPU microprocessor passes through SPI type serial ports and is connected with three-phase four-wire electric energy metering module, and CPU microprocessor passes through GPIO type pin and is connected with switching-on/off control and state feedback module, CPU microprocessor pass through IIC type serial ports with LCD display module is connected, CPU microprocessor passes through SPI type serial ports, USART type serial ports, GPIO type pin respectively and is connected with wireless and wired communication module, and CPU microprocessor passes through GPIO type pin and is connected with the intelligent sensor module.
The Flash memory uses a Flash type chip of 8MB, and the CPU microprocessor uses an STM32F103V series chip.
The three-phase four-wire electric energy metering module comprises a three-phase four-wire metering chip, a current transformer 3 circuit, a voltage transformer 3 circuit and a residual current transformer 1 circuit; the three-phase four-wire metering chip samples current signals of 3 paths of the current transformer and voltage signals of 3 paths of the voltage transformer, simultaneously samples current signals of 1 path of the residual current transformer, calculates sampled original signal data, supplies the obtained various electric energy data to the memory and the microprocessor module to read through the SPI type serial port, and simultaneously writes the three-phase four-wire metering chip through the SPI type serial port for configuring the calibration coefficient register.
The three-phase four-wire metering chip uses a Shanghai spring photoelectric ATT702x series chip.
The switching-on/off control and state feedback module comprises a switching-on/off control output 1 path and a switching-on/off state feedback input 2 paths; the switching-on and switching-off control instruction is sent out by the memory and the microprocessor module through a GPIO type pin, the switching-on and switching-off control instruction is a high-level signal and a low-level signal of direct current low voltage DC3.3V, and an external electric brake switch is driven through the signal amplification circuit; meanwhile, the switching-on and switching-off state detection circuit can convert the real-time state of the electric brake switch into high and low level signals of direct current low voltage DC3.3V, and the high and low level signals are fed back and transmitted to the memory and the microprocessor module through the GPIO type pins.
The memory and microprocessor module is also provided with an SWD debugging module, and an SWD interface of a CPU microprocessor of the memory and microprocessor module is used as the SWD debugging module.
The wireless and wired communication module comprises an NB-IoT wireless communication 1 path, an RS485 bus communication 1 path and an infrared wireless communication 1 path; the NB-IoT wireless communication 1 path is connected with the memory and the microprocessor module through the SPI type serial port, and remote real-time communication interconnection between each item of data and the upper computer is realized; the RS485 bus communication 1 path is connected with the memory and the microprocessor module through a USART type serial port to realize wired communication; the infrared wireless communication 1 path is directly connected with the GPIO type pins of the memory and the microprocessor module through infrared receiving and signaling pins, and realizes data communication in a direct current low voltage DC3.3V high and low level pulse counting mode, thereby realizing short-range line-of-sight wireless communication.
The NB-IoT wireless communication 1 path uses a China Mobile M531x series Internet of things module; the RS485 bus communication 1 path consists of a field bus half-duplex RS485 communication chip and an ESD protection circuit; the infrared wireless communication 1-way uses a module with infrared receiving and transmitting functions.
The intelligent sensor module comprises 4 ways of cable temperature measurement digital temperature sensors and 2 ways of anti-dismantling sensors for the shells, real-time monitoring is carried out on the temperature of the 4 ways of cables, and whether the shells of the sensing monitoring terminals are dismantled is judged.
The LCD display module consists of a 192 × 96 dot matrix 2.8 inch LCD, an LCD driving chip ST75256 and a packaging circuit, wherein the driving chip ST75256 is connected with the memory and the microprocessor module through an IIC type serial port and is controlled by the memory and the microprocessor module.
Multi-functional electric power monitor terminal of intelligence thing networking three-phase four-wire, its concrete working process as follows:
s1, starting up initialization, wherein the switch power supply module supplies power to each module, the LCD display module displays initialization data, and the step S2 is entered;
s2, calculating and storing three-phase four-wire electric energy parameters, and judging whether the electric energy parameter value exceeds an alarm value: if not, the step S3 is proceeded, if yes, an alarm signal is sent, and the step S3 is proceeded;
s3, entering a residual current transformer data reading, calculating and storing process, and judging whether the residual current value exceeds an alarm value: if not, the step S4 is proceeded, if yes, an alarm signal is sent, and the step S4 is proceeded;
s4, entering a temperature sensor data reading, calculating and storing process, and judging whether the temperature of the electric wire exceeds an alarm value: if not, the step S5 is proceeded, if yes, an alarm signal is sent, and the step S5 is proceeded;
s5, entering the state process of reading the anti-disassembly sensor of the shell, and judging whether the shell is disassembled and damaged: if not, the step S6 is proceeded, if yes, an alarm signal is sent, and the step S6 is proceeded;
s6, entering a closing and opening control execution process, and judging whether closing control exists:
if not, skip;
if yes, judging whether the current state is an opening state: if not, skip; if yes, executing closing control output;
entering and judging whether switching-off control exists: if not, go to step S7; if yes, judging whether the current state is a closing state: if not, go to step S7; if yes, executing the opening control output, and proceeding to step S7;
s7, entering a communication read-write process, and judging whether communication read data exist:
if not, skip;
if yes, sending communication reading data;
and entering to judge whether communication write data exist: if not, returning to the step S1 to continue the circular execution program; if yes, the communication data is written and the feedback of the writing result is sent, and the step S1 is returned to continue the circulation execution program.
It should be noted that, the above working process uses the direction of signal as clue to further explain the connection relationship of each component of the three-phase four-wire multifunctional power monitoring terminal of the utility model, so that the technicians in this field can more clearly and conveniently implement the utility model, but does not represent the improvement point of the technical scheme of the utility model on the software, the improvement point of the technical scheme of the utility model is on the whole structure of the whole device, although the technical scheme relates to a processor and other controllers, the execution is the conventional operation, the components selected by the utility model are also the existing components (the specific model and the corresponding connection interface are also given), the improvement point of the technical scheme of the utility model is how to build the existing components into a device, namely the creation point is on the structure, therefore, the utility model belongs to the protection object of the utility model patent.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
the utility model overcomes current three-phase four-wire power monitoring terminal's function singleness, measurement accuracy are low, the communication is untimely, the power consumption security is on the low side, the trouble is reported an emergency and asked for help or increased vigilance untimely, draw the pain point problems such as charges of electricity, its superior function includes that long-range stopwatch, long-range prepayment are recharged and arrearage tripping operation, electric power accurate measurement, residual current detect, line temperature monitoring, long-range separating brake control and relay protection.
Drawings
Fig. 1 is the utility model relates to a multi-functional electric power monitor terminal of intelligence thing networking three-phase four-wire's schematic structure.
Fig. 2 is a multi-functional electric power monitor terminal's of intelligence thing networking three-phase four-wire work flow chart.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.
Referring to fig. 1, an intelligent internet-of-things three-phase four-wire multifunctional power monitoring terminal comprises a memory and microprocessor module, a three-phase four-wire electric energy metering module, a switching power supply module, an on-off control and state feedback module, an LCD display module, an SWD debugging module, a wireless and wired communication module and an intelligent sensor module; the memory and microprocessor module respectively performs information interaction with the three-phase four-wire electric energy metering module, the switching-on/off control and state feedback module, the LCD module, the SWD debugging module, the wireless and wired communication module and the intelligent sensor module; the switch power supply module supplies power to the memory and microprocessor module, the three-phase four-wire electric energy metering module, the switching on/off control and state feedback module, the LCD module, the wireless and wired communication module and the intelligent sensor module respectively.
Furthermore, the memory and microprocessor module comprises a Flash memory and a CPU microprocessor.
Specifically, the Flash memory uses a Flash type chip of 8MB, the Flash memory can still play a data storage function under the condition of power failure, the number of write operations reaches more than 10 ten thousand, and the Flash memory is used for permanently storing calibration coefficients, configuration parameters, fault information records and the like, the CPU microprocessor uses an STM32F103V series chip with higher price, the CPU microprocessor has 100 pins and very rich functions, and the CPU microprocessor is in data read-write communication with the Flash memory through an SPI type serial port; the CPU microprocessor is connected with the three-phase four-wire electric energy metering module through an SPI type serial port, connected with the switching-on/off control and state feedback module through a GPIO type pin, connected with the LCD display module through an IIC type serial port, connected with the wireless and wired communication module through the SPI type serial port, a USART type serial port and the GPIO type pin, connected with the intelligent sensor module through the GPIO type pin, and simultaneously used as the SWD debugging module through an SWD interface.
Furthermore, the three-phase four-wire electric energy metering module comprises a three-phase four-wire metering chip, a current transformer 3 circuit, a voltage transformer 3 circuit and a residual current transformer 1 circuit.
Particularly, three-phase four-wire electric energy metering module's three-phase four-wire metering chip use shanghai moment spring photoelectricity ATT702x series chip, sampling current transformer 3 way current signal, voltage transformer 3 way voltage signal and residual current transformer 1 way current signal simultaneously, carry out the accurate calculation to the original signal data who samples, realize the advanced measurement of electric energy and electric leakage detection function, each item electric energy data that the calculation obtained supply through SPI type serial ports memory and microprocessor module read, simultaneously memory and microprocessor module accessible SPI type serial ports write the operation to three-phase four-wire metering chip for the configuration calibration coefficient register.
Furthermore, the switching-on/off control and state feedback module comprises a switching-on/off control output path 1 and a switching-on/off state feedback input path 2.
Specifically, the switching-on and switching-off control instruction is sent by the memory and microprocessor module through a GPIO type pin, the switching-on and switching-off control instruction is a direct current low voltage DC3.3V high and low level signal, an external electric brake switch is driven through a signal amplification circuit, simultaneously, a switching-on and switching-off state detection circuit can convert the real-time state of the electric brake switch into a direct current low voltage DC3.3V high and low level signal, and the direct current low voltage DC3.3V high and low level signal is fed back and transmitted to the memory and microprocessor module through the GPIO type pin.
Furthermore, the LCD display module receives the data display instruction of the memory and the microprocessor module, and can visually display various electric parameters and configuration parameters of the multifunctional electric meter.
Specifically, the LCD display module mainly comprises a 192 × 96 dot matrix 2.8 inch LCD, a liquid crystal display driving chip ST75256 and a packaging circuit, wherein the driving chip ST75256 is connected with the memory and the microprocessor module through an IIC type serial port and is controlled by the memory and the microprocessor module.
Furthermore, the SWD debugging module is used for burning an execution program for the memory and the microprocessor module, has the function of debugging the program and is used for code feasibility analysis.
Specifically, the SWD debugging module consists of the memory, an SWD interface and a peripheral circuit of a CPU microprocessor in the microprocessor module, can realize the function of burning programs for the CPU microprocessor, can be matched with the simulation analyzer to carry out detailed analysis on program instructions, can analyze variable values of the register, and improves the programming efficiency and the accuracy.
Further, the wireless and wired communication module comprises an NB-IoT wireless communication 1 path, an RS485 bus communication 1 path and an infrared wireless communication 1 path.
Specifically, the NB-IoT wireless communication 1 path of the wireless and wired communication module uses a China Mobile M531x series Internet of things module, and is connected with the memory and the microprocessor module through an SPI type serial port, so that remote real-time communication interconnection between each item of data and an upper computer is realized; the RS485 bus communication 1 of the wireless and wired communication module consists of a field bus half-duplex RS485 communication chip and an ESD protection circuit, and is connected with the memory and the microprocessor module through a USART type serial port to realize wired communication, the single continuous communication distance can reach 1.2 kilometers, and the remote communication can be realized through a repeater; the infrared wireless communication 1 path of the wireless and wired communication module uses a module with infrared receiving and transmitting functions, infrared receiving and transmitting signal pins are directly connected with GPIO type pins of the memory and microprocessor module, data communication is realized in a direct current low voltage DC3.3V high and low level pulse counting mode, and short-range line-of-sight wireless communication is realized.
Further, the intelligent sensor module include 4 ways and the 2 ways of perceptron are prevented tearing open by the shell of cable conductor temperature measurement digital temperature sensor, carry out real-time supervision to 4 ways cable conductor temperature to and whether the perception monitor terminal shell is unpacked apart.
Specifically, 4 DS18B20 series digital temperature sensors are used as cable temperature measurement digital temperature sensors in the intelligent sensor module, signal pins are directly connected with GPIO type pins of the memory and the microprocessor module, a single bus communication mode is adopted, data communication is realized in a direct-current low-voltage DC3.3V high and low level pulse counting mode, and the intelligent sensor module is simple and easy to use, high in temperature measurement accuracy and high in speed; the shell anti-disassembly sensor in the intelligent sensor module uses 2-path direct current low voltage DC3.3V high and low level springs to touch the button switch, the switch pin is directly connected with the GPIO type pin of the memory and the microprocessor module, and the shell is identified whether to be disassembled or not through the level signal, so that the anti-damage warning function is realized.
Furthermore, the switch power supply module respectively supplies power to the memory and microprocessor module, the three-phase four-wire electric energy metering module, the switching on/off control and state feedback module, the LCD display module, the wireless and wired communication module and the intelligent sensor module.
Particularly, switching power supply module is by alternating current-direct current AC-DC rectifier bridge circuit, switching power supply chip, small-size high frequency transformer, filter rectifier circuit, LDO voltage stabilizing circuit etc. and two arbitrary power cords in the three-phase four-wire power are directly imported, and the output is direct current DC12.0V, DC5.0V, DC3.3V power, and the power supply gives the utility model discloses an intelligence thing networking three-phase four-wire multifunctional power monitor terminal.
As shown in fig. 2, a workflow of intelligent internet of things three-phase four-wire multifunctional power monitoring is compiled into a C language program, and is compiled into a computer executable language through a C language compiler, and is executed in the memory and microprocessor module, and the specific workflow is as follows:
step S1: starting up initialization, supplying power to each module by a power supply, displaying initialization data by the LCD display module, and entering the step S2;
step S2: entering three-phase four-wire electric energy parameter calculation and storage, judging whether the electric energy parameter value exceeds an alarm value, if not, entering step S3, if so, sending an alarm signal, and entering step S3;
step S3: entering a residual current transformer data reading, calculating and storing process, judging whether the residual current value exceeds an alarm value, if not, entering a step S4, if so, sending an alarm signal, and entering a step S4;
step S4: entering a temperature sensor data reading, calculating and storing process, judging whether the temperature of the electric wire exceeds an alarm value, if not, entering a step S5, if so, sending an alarm signal, and entering a step S5;
step S5: entering a process of reading the state of the shell anti-disassembly sensor, judging whether the shell anti-disassembly sensor is damaged or not, if not, entering a step S6, if so, sending an alarm signal, and entering a step S6;
step S6: entering a switching-on and switching-off control execution process, judging whether switching-on control exists or not, if not, skipping, if so, judging whether the current switching-off state exists or not, if not, skipping, and if so, executing switching-on control output; entering into judging whether switching-off control exists, if not, entering into step S7, if so, judging whether the current state is a switching-on state, if not, entering into step S7, if so, executing switching-off control output, and entering into step S7;
step S7: entering a communication read-write process, judging whether communication read data exist or not, if not, skipping, and if so, sending the communication read data; and entering to judge whether communication write data exists or not, if not, returning to the step S1 to continue the circular execution program, if so, writing the communication data and sending write result feedback, and returning to the step S1 to continue the circular execution program.
The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.
Claims (10)
1. The utility model provides a multi-functional power monitoring terminal of intelligence thing networking three-phase four-wire which characterized in that: the intelligent controller comprises a memory and a microprocessor module, and further comprises a three-phase four-wire electric energy metering module, a switching power supply module, an on-off control and state feedback module, an LCD display module, a wireless and wired communication module and an intelligent sensor module which are respectively connected with the memory and the microprocessor module; the switch power supply module respectively supplies power to the memory and microprocessor module, the three-phase four-wire electric energy metering module, the switching-on/off control and state feedback module, the LCD display module, the wireless and wired communication module and the intelligent sensor module;
the memory and microprocessor module is used for realizing data storage and intelligent metering control program execution;
the three-phase four-wire electric energy metering module is used for calculating sampled original signal data to realize advanced electric energy metering and leakage detection functions, transmitting each item of electric energy data obtained through calculation to the memory and the microprocessor module for reading, and simultaneously writing the chip of the three-phase four-wire electric energy metering module by the memory and the microprocessor module for configuring a calibration coefficient register;
the switching-on/off control and state feedback module is used for receiving and executing a switching-on/off control instruction sent by the memory and microprocessor module and transmitting the switching-on/off state feedback to the memory and microprocessor module;
the LCD display module is used for receiving data display instructions of the memory and the microprocessor module;
the wireless and wired communication module is used for realizing remote real-time communication interconnection between each item of data of the memory and the microprocessor module and the upper computer and short-range line-of-sight communication;
the intelligent sensor module is used for monitoring the temperature of the 4-way cable in real time and sensing whether the shell of the monitoring terminal is disassembled.
2. The intelligent internet-of-things three-phase four-wire multifunctional power monitoring terminal according to claim 1, characterized in that: the memory and microprocessor module comprises a Flash memory and a CPU microprocessor; the CPU microprocessor is in data read-write communication with the Flash memory through the SPI type serial port; CPU microprocessor passes through SPI type serial ports and is connected with three-phase four-wire electric energy metering module, and CPU microprocessor passes through GPIO type pin and is connected with switching-on/off control and state feedback module, CPU microprocessor pass through IIC type serial ports with LCD display module is connected, CPU microprocessor passes through SPI type serial ports, USART type serial ports, GPIO type pin respectively and is connected with wireless and wired communication module, and CPU microprocessor passes through GPIO type pin and is connected with the intelligent sensor module.
3. The intelligent internet-of-things three-phase four-wire multifunctional power monitoring terminal according to claim 2, characterized in that: the Flash memory uses a Flash type chip of 8MB, and the CPU microprocessor uses an STM32F103V series chip.
4. The intelligent internet-of-things three-phase four-wire multifunctional power monitoring terminal according to claim 1, characterized in that: the three-phase four-wire electric energy metering module comprises a three-phase four-wire metering chip, a current transformer 3 circuit, a voltage transformer 3 circuit and a residual current transformer 1 circuit; the three-phase four-wire metering chip samples current signals of 3 paths of the current transformer and voltage signals of 3 paths of the voltage transformer, simultaneously samples current signals of 1 path of the residual current transformer, calculates sampled original signal data, supplies the obtained various electric energy data to the memory and the microprocessor module to read through the SPI type serial port, and simultaneously writes the three-phase four-wire metering chip through the SPI type serial port for configuring the calibration coefficient register.
5. The intelligent Internet of things three-phase four-wire multifunctional power monitoring terminal according to claim 4, characterized in that: the three-phase four-wire metering chip uses a Shanghai spring photoelectric ATT702x series chip.
6. The intelligent internet-of-things three-phase four-wire multifunctional power monitoring terminal according to claim 1, characterized in that: the switching-on/off control and state feedback module comprises a switching-on/off control output 1 path and a switching-on/off state feedback input 2 paths; the switching-on and switching-off control instruction is sent out by the memory and the microprocessor module through a GPIO type pin, the switching-on and switching-off control instruction is a high-level signal and a low-level signal of direct current low voltage DC3.3V, and an external electric brake switch is driven through the signal amplification circuit; meanwhile, the switching-on and switching-off state detection circuit can convert the real-time state of the electric brake switch into high and low level signals of direct current low voltage DC3.3V, and the high and low level signals are fed back and transmitted to the memory and the microprocessor module through the GPIO type pins.
7. The intelligent internet-of-things three-phase four-wire multifunctional power monitoring terminal according to claim 1, characterized in that: the memory and microprocessor module is also provided with an SWD debugging module, and an SWD interface of a CPU microprocessor of the memory and microprocessor module is used as the SWD debugging module.
8. The intelligent internet-of-things three-phase four-wire multifunctional power monitoring terminal according to claim 1, characterized in that: the wireless and wired communication module comprises an NB-IoT wireless communication 1 path, an RS485 bus communication 1 path and an infrared wireless communication 1 path; the NB-IoT wireless communication 1 path is connected with the memory and the microprocessor module through the SPI type serial port, and remote real-time communication interconnection between each item of data and the upper computer is realized; the RS485 bus communication 1 path is connected with the memory and the microprocessor module through a USART type serial port to realize wired communication; the infrared wireless communication 1 path is directly connected with the GPIO type pins of the memory and the microprocessor module through infrared receiving and signaling pins, and realizes data communication in a direct current low voltage DC3.3V high and low level pulse counting mode, thereby realizing short-range line-of-sight wireless communication.
9. The intelligent internet-of-things three-phase four-wire multifunctional power monitoring terminal according to claim 8, characterized in that: the NB-IoT wireless communication 1 path uses a China Mobile M531x series Internet of things module; the RS485 bus communication 1 path consists of a field bus half-duplex RS485 communication chip and an ESD protection circuit; the infrared wireless communication 1-way uses a module with infrared receiving and transmitting functions.
10. The intelligent internet-of-things three-phase four-wire multifunctional power monitoring terminal according to claim 1, characterized in that: the intelligent sensor module comprises 4 ways of cable temperature measurement digital temperature sensors and 2 ways of anti-dismantling sensors for the shells, real-time monitoring is carried out on the temperature of the 4 ways of cables, and whether the shells of the sensing monitoring terminals are dismantled is judged.
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| CN111431274A (en) * | 2020-03-19 | 2020-07-17 | 有新智能科技(广州)有限公司 | Intelligent Internet of things three-phase four-wire multifunctional power monitoring terminal and method |
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