阅读说明：本技术 一种基于扫码用电的电源箱装置及其灌溉用电切换方法 (Power box device based on code scanning power utilization and irrigation power utilization switching method thereof ) 是由 李刚刚 臧浩良 姚伟伟 于航舰 李蕊 王凯 罗晨 马天龙 王鹏 高锐 李京周 于 2021-09-14 设计创作，主要内容包括：本发明公开了一种基于扫码用电的电源箱装置及其灌溉用电切换方法,包括箱体,所述箱体内部设置腔室一和腔室二,腔室一内部设置有进线开关、三相智能电能表、三相交流接触器一和三相交流接触器二,腔室二内部设置有接线端子、漏电保护开关一和漏电保护开关二；所述进线开关输入端连接三相四线电源线,进线开关输出端通过三相智能电能表分别与三相交流接触器一和三相交流接触器二连接,三相交流接触器一与三相交流接触器二输出端分别通过漏电保护开关一和漏电保护开关二与接线端子连接；该装置通过墒情监测传感器对土壤墒情状况的监测,判断土壤灌溉情况,通过水位监测传感器对沟渠水位深度的监测,实现地下水灌溉与沟渠水灌溉用电的自动切换。(The invention discloses a power supply box device based on code scanning power utilization and an irrigation power utilization switching method thereof, wherein the power supply box device comprises a box body, a first cavity and a second cavity are arranged in the box body, a wire inlet switch, a three-phase intelligent electric energy meter, a first three-phase alternating current contactor and a second three-phase alternating current contactor are arranged in the first cavity, and a wiring terminal, a first leakage protection switch and a second leakage protection switch are arranged in the second cavity; the input end of the incoming line switch is connected with a three-phase four-wire power line, the output end of the incoming line switch is respectively connected with a first three-phase alternating current contactor and a second three-phase alternating current contactor through a three-phase intelligent electric energy meter, and the output ends of the first three-phase alternating current contactor and the second three-phase alternating current contactor are respectively connected with a wiring terminal through a first leakage protection switch and a second leakage protection switch; the device judges the soil irrigation condition through the monitoring of soil moisture content monitoring sensor to soil moisture content situation, through the monitoring of water level monitoring sensor to irrigation canals and ditches water level degree of depth, realizes the automatic switch-over of groundwater irrigation and irrigation canals and ditches water irrigation power consumption.)

1. A power box device based on code scanning power consumption comprises a box body, a box door I and a box door II, wherein one side of the box body is movably connected with the box door I and the box door II through hinges;

the method is characterized in that:

the box body is internally provided with a first cavity and a second cavity, the first cavity is internally provided with an incoming line switch, a three-phase intelligent electric energy meter, a first three-phase alternating current contactor and a second three-phase alternating current contactor, and the second cavity is internally provided with a wiring terminal, a first leakage protection switch and a second leakage protection switch;

the input end of the incoming line switch is connected with a three-phase four-wire power line, and the output end of the incoming line switch is respectively connected with a first three-phase alternating current contactor and a second three-phase alternating current contactor in parallel through a three-phase intelligent electric energy meter;

the output ends of the first three-phase alternating current contactor and the second three-phase alternating current contactor are respectively connected with a wiring terminal through a first leakage protection switch and a second leakage protection switch, and the output end of the wiring terminal is respectively connected with an external underground water irrigation water pump and a ditch water irrigation water pump through cables;

the two-dimension code is used for realizing the electricity utilization function by a user through mobile phone code scanning payment;

the three-phase intelligent electric energy meter is also connected with a soil moisture content monitoring sensor and a water level monitoring sensor through the RS485 interface, monitors the soil moisture content of farmland through the soil moisture content monitoring sensor, judges the soil irrigation condition according to the set soil moisture content limit value and can inform a user of early warning information needing irrigation in a short message mode;

the three-phase intelligent electric energy meter monitors the depth of the water level of the ditch through the water level monitoring sensor, and judges and realizes automatic switching of the functions of electricity consumption for underground water irrigation and electricity consumption for ditch water irrigation according to a set value.

2. The power box device based on code scanning power utilization of claim 1, wherein: the rear side surface of the first chamber is provided with a mounting plate, and the incoming line switch, the three-phase intelligent electric energy meter, the three-phase alternating current contactor I and the three-phase alternating current contactor II are fixed on the mounting plate through fastening screws;

two ribs are transversely arranged at the position, close to the rear side face, in the second cavity, the wiring terminal is arranged between the two ribs, and the first leakage protection switch and the second leakage protection switch are fixed on the two ribs through screws.

3. The power box device based on code scanning power utilization of claim 1, wherein: the intelligent three-phase electric energy meter is characterized in that a current sampling unit, a voltage sampling unit and a control panel are arranged inside the intelligent three-phase electric energy meter, a single chip microcomputer, a power supply module, a power supply management circuit, a three-phase electric energy metering chip, a contactor switch circuit I, a contactor switch circuit II, a clock chip, a 4G module, an RS485 interface circuit I, an RS485 interface circuit II, a Bluetooth module and an EEPROM memory are arranged on the control panel, the input end of the three-phase electric energy metering chip is respectively connected with the current sampling unit and the voltage sampling unit, the output end of the three-phase electric energy metering chip is connected with the single chip microcomputer through an SPI port, the control end of the single chip microcomputer is respectively connected with auxiliary contacts of a control part of a three-phase alternating current contactor I and a control part of a three-phase alternating current contactor II through the contactor switch circuit I and the contactor switch circuit II, and a UART port of the single chip microcomputer is respectively connected with the 4G module, the RS485 interface circuit I, the RS485 interface circuit II and the Bluetooth module, the I/O port of the singlechip is respectively connected with the clock chip and the EEPROM memory.

4. The power box device based on code scanning power utilization of claim 3, wherein: the current sampling unit and the voltage sampling unit are respectively composed of three groups of current transformers and three groups of voltage transformers, the input ends of the three groups of current transformers and the three groups of voltage transformers are respectively connected with three-phase power lines corresponding to the output ends of the incoming line switch, and the output ends of the three groups of current transformers and the three groups of voltage transformers are respectively connected with the input ends of a three-phase electric energy metering chip, a three-phase alternating current contactor I and a three-phase alternating current contactor II;

the three groups of current transformers are respectively a current transformer I, a current transformer II and a current transformer III;

the three groups of voltage transformers are respectively a first voltage transformer, a second voltage transformer and a third voltage transformer.

5. The power box device based on code scanning power utilization of claim 3, wherein: the first contactor switch circuit consists of resistors R1, R2, R3, R4, R5, R6, a triode Q1, Q2, a diode D1, D2, a first relay and a second relay, one end of the resistor R1 is connected with a P1 pin on an IO port of the single chip microcomputer, the other end of the resistor R1 is respectively connected with one end of a resistor R2 and a base electrode of the triode Q1, the other end of the resistor R2 is connected with an emitter electrode of the triode Q1, collector electrodes of the triode Q1 are respectively connected with an anode of a control part of the first relay, a reverse end of the diode D1 and one end of a resistor R3 in parallel, the other end of the resistor R3, a forward end of the diode D1 and a cathode of the control part of the first relay are all grounded, a common terminal pin on the first relay is connected with an input power supply, a normally closed terminal pin is suspended, a common terminal pin is respectively connected with an auxiliary contact of a control part of the first three-phase alternating current contactor and a common terminal pin on the second relay, a P2 pin on the IO port of the single chip microcomputer is connected with a resistor R4, the other end of the resistor R4 is respectively connected with one end of a resistor R5 and the base electrode of a triode Q2, the other end of the resistor R5 is connected with the emitting electrode of a triode Q2, the collecting electrode of the triode Q2 is connected with the positive electrode of the control part of the relay II, the reverse end of a diode D2 and one end of a resistor R6 in parallel, the other end of the resistor R6, the positive end of a diode D2 and the negative electrode of the control part of the relay II are all grounded, a normally closed end pin on the relay II is suspended, and a normally open end pin is connected with an auxiliary contact of the control part of the three-phase alternating current contactor;

the second contactor switch circuit consists of resistors R7, R8, R9, R10, R11, R12, a triode Q3, Q4, a diode D3, D4, a relay III and a relay IV, one end of the resistor R7 is connected with a P3 pin on an IO port of the singlechip, the other end of the resistor R7 is respectively connected with one end of a resistor R8 and a base of the triode Q3, the other end of the resistor R8 is connected with an emitter of the triode Q3, collectors of the triode Q3 are respectively connected with an anode of a three-control relay part, a reverse end of the diode D3 and one end of a resistor R9 in parallel, the other end of the resistor R9, a forward end of the diode D3 and a cathode of the three-control relay part are all grounded, a common terminal pin on the third relay is connected with an input power supply, a normally closed terminal pin is suspended, a common terminal pin on the normally open terminal is respectively connected with an auxiliary contact of the two-control part of the three-phase AC contactor and a common terminal pin on the IO port, a P4 pin on the singlechip is connected with a resistor R10, the other end of the resistor R10 is connected with one end of a resistor R11 and the base electrode of the triode Q4 respectively, the other end of the resistor R11 is connected with the emitter electrode of the triode Q4, the collector electrode of the triode Q4 is connected with the positive electrode of the four control parts of the relay, the reverse end of the diode D4 and one end of the resistor R12 are connected in parallel, the other end of the resistor R12, the forward end of the diode D4 and the negative electrode of the four control parts of the relay are grounded, the normally closed end pin on the four relay is suspended, and the normally open end pin is connected with the auxiliary contact of the two control parts of the three-phase alternating current contactor.

6. The power box device based on code scanning power utilization of claim 1, wherein: the box door corresponds to the position of the first chamber, and an insulating sealing gasket I is arranged at the position, contacting the front side of the first chamber, of the periphery of the back of the first box door;

the second box door corresponds to the second chamber, and a second insulating sealing gasket is arranged at the position, contacting the front surface of the second chamber, of the periphery of the back of the second box door;

the intelligent lock and the second lock are both arranged at the right side positions of the first box door and the second box door;

the two-dimensional code is arranged at the left side of the top of the box door, the observation windows are arranged at the right side of the two-dimensional code at intervals, and the observation windows correspond to the positions of the liquid crystal display screens of the three-phase intelligent electric energy meter.

7. The power box device based on code scanning power utilization of claim 1, wherein: and a service telephone and a meter box code are sequentially arranged from left to right below the first box door, and the meter box code is consistent with the asset code of the three-phase intelligent electric energy meter.

8. The power box device based on code scanning power utilization of claim 1, wherein: a plurality of heat dissipation holes are evenly distributed in the middle of the left side face and the right side face of the box body.

9. The irrigation power switching method based on the code-scanning power supply box device according to any one of claims 1 to 8, characterized in that: the method comprises the following steps:

step 1: the system is powered on and initialized;

step 2: the single chip microcomputer reads sampling data of the soil moisture monitoring sensor;

and step 3: judging whether the sampled data is smaller than a set limit value, if so, executing the step 4, otherwise, returning to the step 2 for circular execution;

and 4, step 4: sending information needing irrigation through a 4G module;

and 5: waiting whether an irrigation command is received, if the user receives the irrigation command, executing the step 6, and if not, returning to the step 4 to continuously send information needing irrigation;

step 6: the singlechip reads the sampling data of the water level monitoring sensor;

and 7: judging whether the sampled data is larger than a set value or not, if so, sending control signals by ports P3 and P4 of the single chip microcomputer to control the third relay and the fourth relay to be closed, driving the second three-phase alternating current contactor to be electrified, irrigating ditch water, and returning to the step 6 for circular execution; otherwise, the ports P1 and P2 of the single chip microcomputer send control signals to control the first relay and the second relay to be closed, the first three-phase alternating current contactor is driven to be electrified, underground water is irrigated, and the step 6 is returned to perform the circulating execution.

Technical Field

The invention relates to the technical field of intelligent power utilization, in particular to a power box device based on code scanning power utilization and an irrigation power utilization switching method thereof.

Background

Along with the development of rural power grid transformation engineering, the intelligent power box serves as important basic equipment for intelligent power grid construction, promotes the application of the intelligent power box in rural power grid transformation, and has a prominent effect on realizing rural power grid informatization, automation and interaction. However, in the current power utilization scenes of agricultural drainage motor-pumped well irrigation, canal irrigation and the like, the phenomena of repeated reporting of metering equipment, low utilization rate of power assets, power supply conversion, price charging and the like exist, and adverse effects are generated on the environment of optimized operators.

The conventional power box device is internally provided with equipment such as a common metering electric energy meter, an inlet wire switch, an electric leakage protection switch and the like, each user is provided with one power box device, and a plurality of power box devices are required to be arranged at the same power consumption point, so that the automatic switching management service of public area power consumption such as motor-pumped well irrigation, water channel irrigation and the like cannot be met, the operation and maintenance workload of the device is large, the customer satisfaction degree is low, and the large service workload is caused for power enterprises; in addition, the quality of the power supply box door locks is uneven, and the phenomena of door lock damage and the like are easy to occur. Therefore, an intelligent power box device based on code scanning power utilization is needed.

Disclosure of Invention

The invention aims to solve the technical problem that multi-user resources such as conventional motor-pumped well irrigation, ditch irrigation and the like cannot share electricity, and discloses a power supply box device based on code scanning electricity utilization, which can realize automatic switching of electric power utilization functions of underground water irrigation and ditch water irrigation.

The technical scheme adopted by the invention for solving the technical problems is as follows: a power box device based on code scanning power consumption comprises a box body, a box door I and a box door II, wherein one side of the box body is movably connected with the box door I and the box door II through hinges;

the box body is internally provided with a first cavity and a second cavity, the first cavity is internally provided with an incoming line switch, a three-phase intelligent electric energy meter, a first three-phase alternating current contactor and a second three-phase alternating current contactor, and the second cavity is internally provided with a wiring terminal, a first leakage protection switch and a second leakage protection switch;

the input end of the incoming line switch is connected with a three-phase four-wire power line, and the output end of the incoming line switch is respectively connected with a first three-phase alternating current contactor and a second three-phase alternating current contactor in parallel through a three-phase intelligent electric energy meter;

the output ends of the first three-phase alternating current contactor and the second three-phase alternating current contactor are respectively connected with a wiring terminal through a first leakage protection switch and a second leakage protection switch, and the output end of the wiring terminal is respectively connected with an external underground water irrigation water pump and a ditch water irrigation water pump through cables;

the two-dimension code is used for realizing the electricity utilization function by a user through mobile phone code scanning payment;

the three-phase intelligent electric energy meter is also connected with a soil moisture content monitoring sensor and a water level monitoring sensor through the RS485 interface, monitors the soil moisture content of farmland through the soil moisture content monitoring sensor, judges the soil irrigation condition according to the set soil moisture content limit value and can inform a user of early warning information needing irrigation in a short message mode;

the three-phase intelligent electric energy meter monitors the depth of the water level of the ditch through the water level monitoring sensor, and judges and realizes automatic switching of the functions of electricity consumption for underground water irrigation and electricity consumption for ditch water irrigation according to a set value.

Preferably, an installation plate is arranged on the rear side face of the first chamber, and the incoming line switch, the three-phase intelligent electric energy meter, the three-phase alternating current contactor I and the three-phase alternating current contactor II are fixed on the installation plate through fastening screws;

two ribs are transversely arranged at the position, close to the rear side face, in the second cavity, the wiring terminal is arranged between the two ribs, and the first leakage protection switch and the second leakage protection switch are fixed on the two ribs through screws.

Preferably, the inside of three-phase intelligent ammeter is provided with current sampling unit, voltage sampling unit and control panel, be provided with singlechip, power module, power management circuit, three-phase electric energy metering chip, contactor switch circuit one, contactor switch circuit two, clock chip, 4G module, RS485 interface circuit one, RS485 interface circuit two, bluetooth module and EEPROM memory on the control panel, the input of three-phase electric energy metering chip is connected with current sampling unit and voltage sampling unit respectively, and three-phase electric energy metering chip output passes through the SPI mouth and is connected with the singlechip, and the control end of singlechip passes through contactor switch circuit one and contactor switch circuit two and is connected with the auxiliary contact of three-phase ac contactor one and three-phase ac contactor two's control part respectively, and the UART mouth of singlechip respectively with 4G module, RS485 interface circuit one, And the RS485 interface circuit II is connected with the Bluetooth module, and an I/O port of the singlechip is respectively connected with the clock chip and the EEPROM memory.

Preferably, the current sampling unit and the voltage sampling unit respectively consist of three groups of current transformers and three groups of voltage transformers, the input ends of the three groups of current transformers and the three groups of voltage transformers are respectively connected with three-phase power lines corresponding to the output ends of the incoming line switch, and the output ends of the three groups of current transformers and the three groups of voltage transformers are respectively connected with the input ends of a three-phase electric energy metering chip, a three-phase alternating current contactor I and a three-phase alternating current contactor II;

the three groups of current transformers are respectively a current transformer I, a current transformer II and a current transformer III;

the three groups of voltage transformers are respectively a first voltage transformer, a second voltage transformer and a third voltage transformer.

Preferably, the first contactor switch circuit is composed of resistors R1, R2, R3, R4, R5, R6, a transistor Q1, Q2, a diode D1, D2, a first relay and a second relay, one end of the resistor R1 is connected with a pin P1 on an IO port of the single chip microcomputer, the other end of the resistor R1 is respectively connected with one end of a resistor R2 and a base of the transistor Q1, the other end of the resistor R2 is connected with an emitter of the transistor Q1, collectors of the transistor Q1 are respectively connected with an anode of a control part of the first relay, a reverse end of the diode D1 and one end of a resistor R3 in parallel, the other end of the resistor R3, a forward end of the diode D1 and a cathode of the control part of the first relay are all grounded, a common terminal pin on the first relay is connected with an input power supply, a normally closed terminal pin is suspended, a normally open terminal is respectively connected with an auxiliary contact of a control part of the first three-phase ac contactor and a common terminal pin on the second relay, a pin P2 on the IO port of the single chip microcomputer is connected with a pin R4, the other end of the resistor R4 is respectively connected with one end of a resistor R5 and the base electrode of a triode Q2, the other end of the resistor R5 is connected with the emitting electrode of a triode Q2, the collecting electrode of the triode Q2 is connected with the positive electrode of the control part of the relay II, the reverse end of a diode D2 and one end of a resistor R6 in parallel, the other end of the resistor R6, the positive end of a diode D2 and the negative electrode of the control part of the relay II are all grounded, a normally closed end pin on the relay II is suspended, and a normally open end pin is connected with an auxiliary contact of the control part of the three-phase alternating current contactor;

the second contactor switch circuit consists of resistors R7, R8, R9, R10, R11, R12, a triode Q3, Q4, a diode D3, D4, a relay III and a relay IV, one end of the resistor R7 is connected with a P3 pin on an IO port of the singlechip, the other end of the resistor R7 is respectively connected with one end of a resistor R8 and a base of the triode Q3, the other end of the resistor R8 is connected with an emitter of the triode Q3, collectors of the triode Q3 are respectively connected with an anode of a three-control relay part, a reverse end of the diode D3 and one end of a resistor R9 in parallel, the other end of the resistor R9, a forward end of the diode D3 and a cathode of the three-control relay part are all grounded, a common terminal pin on the third relay is connected with an input power supply, a normally closed terminal pin is suspended, a common terminal pin on the normally open terminal is respectively connected with an auxiliary contact of the two-control part of the three-phase AC contactor and a common terminal pin on the IO port, a P4 pin on the singlechip is connected with a resistor R10, the other end of the resistor R10 is connected with one end of a resistor R11 and the base electrode of the triode Q4 respectively, the other end of the resistor R11 is connected with the emitter electrode of the triode Q4, the collector electrode of the triode Q4 is connected with the positive electrode of the four control parts of the relay, the reverse end of the diode D4 and one end of the resistor R12 are connected in parallel, the other end of the resistor R12, the forward end of the diode D4 and the negative electrode of the four control parts of the relay are grounded, the normally closed end pin on the four relay is suspended, and the normally open end pin is connected with the auxiliary contact of the two control parts of the three-phase alternating current contactor.

Preferably, the position of the first chamber is corresponding to the position of the first chamber of the box door, and a first insulating sealing gasket is arranged at the position, in contact with the front surface of the first chamber, of the periphery of the back of the first chamber of the box door;

the second box door corresponds to the second chamber, and a second insulating sealing gasket is arranged at the position, contacting the front surface of the second chamber, of the periphery of the back of the second box door;

the intelligent lock and the second lock are both arranged at the right side positions of the first box door and the second box door;

the two-dimensional code is arranged at the left side of the top of the box door, the observation windows are arranged at the right side of the two-dimensional code at intervals, and the observation windows correspond to the positions of the liquid crystal display screens of the three-phase intelligent electric energy meter.

Preferably, a service telephone and a meter box code are sequentially arranged below the first box door from left to right, and the meter box code is consistent with the asset code of the three-phase intelligent electric energy meter.

Preferably, a plurality of heat dissipation holes are uniformly distributed in the middle of the left side surface and the right side surface of the box body.

An irrigation power utilization switching method of a power box device based on code scanning power utilization comprises the following steps:

step 1: the system is powered on and initialized;

step 2: the single chip microcomputer reads sampling data of the soil moisture monitoring sensor;

and step 3: judging whether the sampled data is smaller than a set limit value, if so, executing the step 4, otherwise, returning to the step 2 for circular execution;

and 4, step 4: sending information needing irrigation through a 4G module;

and 5: waiting whether an irrigation command is received, if the user receives the irrigation command, executing the step 6, and if not, returning to the step 4 to continuously send information needing irrigation;

step 6: the singlechip reads the sampling data of the water level monitoring sensor;

and 7: judging whether the sampled data is larger than a set value or not, if so, sending control signals by ports P3 and P4 of the single chip microcomputer to control the third relay and the fourth relay to be closed, driving the second three-phase alternating current contactor to be electrified, irrigating ditch water, and returning to the step 6 for circular execution; otherwise, the ports P1 and P2 of the single chip microcomputer send control signals to control the first relay and the second relay to be closed, the first three-phase alternating current contactor is driven to be electrified, underground water is irrigated, and the step 6 is returned to perform the circulating execution.

Compared with the prior art, the invention has the beneficial effects that: a power box device based on code scanning power utilization monitors soil moisture content of farmland by arranging a soil moisture content monitoring sensor, judges soil irrigation conditions and informs users of early warning information needing irrigation in a short message mode;

the water level depth of the ditch is monitored by arranging the water level monitoring sensor, and the automatic switching of the electricity utilization function of underground water irrigation and the electricity utilization function of ditch water irrigation is judged and realized according to a set value, wherein the single chip microcomputer controls the first contactor switch circuit and the second contactor switch circuit and sequentially drives the switching of energization between the first three-phase alternating current contactor and the second three-phase alternating current contactor, so that the automatic switching of electricity utilization of underground water irrigation and ditch water irrigation is realized, and the problem that the current motor-pumped well irrigation and ditch irrigation cannot realize the purpose of sharing electricity utilization is avoided;

the 4G module is arranged, so that data communication between the power box device and the master station system can be realized in a wireless mode;

the mobile phone can scan the two-dimensional code on the first box door, so that the function of scanning the pay electricity utilization is realized.

Drawings

FIG. 1 is a schematic view of the internal structure of the case of the apparatus;

FIG. 2 is a schematic front view of the apparatus;

FIG. 3 is a schematic side view of the apparatus;

FIG. 4 is a schematic block diagram of a control circuit of the three-phase intelligent electric energy meter in the device;

FIG. 5 is a schematic diagram of the contactor switch circuit of FIG. 4;

FIG. 6 is a schematic diagram of a second contactor switch circuit of FIG. 4;

FIG. 7 is a schematic diagram of the internal wiring of the device;

FIG. 8 is a schematic diagram of the connection between the first three-phase AC contactor and the second three-phase AC contactor of the device and the first contactor switch circuit and the second contactor switch circuit respectively;

FIG. 9 is a flow chart of the software implementation of the control part of the device.

In the figure: 1. a box body; 2. a first box door; 3. a second box door; 4. heat dissipation holes; 5. a first chamber; 6. a second chamber; 7. an incoming line switch; 8. a three-phase intelligent electric energy meter; 9. a first three-phase alternating current contactor; 10. a second three-phase alternating current contactor; 11. a first leakage protection switch; 12. a second leakage protection switch; 13. a wiring terminal; 14. an underground water irrigation pump; 15. a ditch water irrigation pump; 16. a water level monitoring sensor; 17. a soil moisture content monitoring sensor;

21. two-dimensional codes; 22. a first observation window; 23. an intelligent lockset; 24. encoding a meter box;

31. a second window; 32. a second lockset;

51. mounting a plate;

61. ribs;

81. a current sampling unit; 82. a voltage sampling unit; 83. a control panel; 84. a liquid crystal display screen;

8301. a power supply module; 8302. a power management circuit; 8303. a single chip microcomputer; 8304. a three-phase electric energy metering chip; 8305. a contactor switch circuit I; 8306. a contactor switch circuit II; 8307. a clock chip; 8308. a 4G module; 8309. an RS485 interface circuit I; 8310. an RS485 interface circuit II; 8311. a Bluetooth module; 8312. an EEPROM memory; 8313. a first relay; 8314. a second relay; 8315. a third relay; 8316. and a fourth relay.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, the present invention provides a technical solution: a power box device based on code scanning power utilization comprises a box body 1, a box door I2 and a box door II 3, wherein one side of the box body 1 is movably connected with the box door I2 and the box door II 3 through hinges, a two-dimensional code 21, an observation window I22 and an intelligent lock 23 are arranged on the box door I2, and a window II 31 and a lock II 32 are arranged on the box door II 3; transparent toughened glass is arranged on the first observation window 22 and the second observation window 31.

A first cavity 5 and a second cavity 6 are arranged inside the box body 1, an incoming line switch 7, a three-phase intelligent electric energy meter 8, a first three-phase alternating current contactor 9 and a second three-phase alternating current contactor 10 are arranged inside the first cavity 5, and a wiring terminal 13, a first leakage protection switch 11 and a second leakage protection switch 12 are arranged inside the second cavity 6;

referring to fig. 4 and 7, an input end of the inlet switch 7 is connected to a three-phase four-wire power line, and an output end of the inlet switch 7 is respectively connected to a first three-phase ac contactor 9 and a second three-phase ac contactor 10 in parallel through a three-phase intelligent electric energy meter 8; the output ends of the first three-phase alternating current contactor 9 and the second three-phase alternating current contactor 10 are respectively connected with a wiring terminal 13 through a first leakage protection switch 11 and a second leakage protection switch 12, and the output end of the wiring terminal 13 is respectively connected with an external underground water irrigation water pump 14 and a ditch water irrigation water pump 15 through cables; the position that box 1's back corresponds service entrance switch 7 in this embodiment is provided with the entrance hole, and the input port that corresponds on external three-phase four-wire power cord passes through entrance hole and the service entrance switch 7 is connected, is provided with insulating sheath between this entrance hole and the power cord, and this insulating sheath has dampproofing, leakproofness, can avoid outside moisture, dust to get into the inside of box 1.

In this embodiment, a partition plate (not shown in the figure) is disposed between the first chamber 5 and the second chamber 6, a wire passing hole is disposed on the partition plate, and wires led out from the first three-phase ac contactor 9 and the second three-phase ac contactor 10 are connected to the corresponding first leakage protection switch 11 and the second leakage protection switch 12 through the wire passing hole.

The two-dimension code 21 is used for realizing the electricity utilization function by a user through mobile phone code scanning payment;

referring to fig. 4, a soil moisture content monitoring sensor 17 and a water level monitoring sensor 16 are further connected to the three-phase intelligent electric energy meter 8 through an RS485 interface, the three-phase intelligent electric energy meter 8 monitors soil moisture content of farmland through the soil moisture content monitoring sensor 17, judges a soil irrigation condition according to a set soil moisture content limit value, and can notify a user of early warning information required to be irrigated in a short message manner;

the three-phase intelligent electric energy meter 8 monitors the depth of the water level of the ditch through the water level monitoring sensor 16, and judges and realizes automatic switching between the functions of underground water irrigation electricity utilization and ditch water irrigation electricity utilization according to a set value.

Wherein the water level monitoring sensor 16 is placed in the water of the ditch and the probe part of the soil moisture monitoring sensor 17 is inserted into the soil of the farmland.

Referring to fig. 1, a mounting plate 51 is arranged on the rear side surface of the first chamber 5, screw holes i are formed in four corners of the mounting plate 51, screw holes ii are formed in positions, corresponding to the screw holes, on the rear side surface of the first chamber 5, and the mounting plate 51 is fixed on the rear side surface of the first chamber 5 by screwing bolts into the screw holes i and the screw holes ii; the incoming line switch 7, the three-phase intelligent electric energy meter 8, the first three-phase alternating current contactor 9 and the second three-phase alternating current contactor 10 are fixed on the mounting plate 51 through fastening screws; in this embodiment, a plurality of mounting screw holes are formed in the mounting plate 51 corresponding to the positions of the inlet switch 7, the three-phase intelligent electric energy meter 8, the first three-phase alternating current contactor 9 and the second three-phase alternating current contactor 10, the inlet switch 7, the first three-phase alternating current contactor 9 and the second three-phase alternating current contactor 10 are screwed into the mounting screw holes in the corresponding positions on the mounting plate 51 through fastening screws and are fixedly connected, and the three-phase intelligent electric energy meter 8 penetrates through screw holes distributed around the inside of the meter box through the fastening screws and is fixedly connected with the mounting screw holes in the corresponding positions on the mounting plate 51;

referring to fig. 1, two ribs 61 are transversely arranged in the second chamber 6 near the rear side, the connection terminal 13 is arranged between the two ribs 61, and the first leakage protection switch 11 and the second leakage protection switch 12 are both fixed on the two ribs 61 through screws.

Referring to fig. 4 and 8, a current sampling unit 81, a voltage sampling unit 82 and a control board 83 are arranged inside the three-phase intelligent electric energy meter 8, a single chip microcomputer 8303, a power module 8301, a power management circuit 8302, a three-phase electric energy metering chip 8304, a contactor switch circuit first 8305, a contactor switch circuit second 8306, a clock chip 8307, a 4G module 8308, an RS485 interface circuit first 8309, an RS485 interface circuit second 8310, a bluetooth module 8311 and an EEPROM memory 8312 are arranged on the control board 83, the three-phase electric energy metering chip 8304 selects an electric energy metering chip with the model of ATT7026, an input end of the three-phase electric energy metering chip 8304 is respectively connected with the current sampling unit 81 and the voltage sampling unit 82, an output end of the three-phase electric energy metering chip 8304 is connected with the single chip microcomputer 8303 through an SPI port, and a control end of the single chip 8303 is respectively connected with auxiliary touch contacts of a control part of the three-phase ac contactor first 9 and the three-phase ac contactor second 10 through the contactor 8305 and the contactor switch circuit second 8306 The head 91 is connected, the UART port of the singlechip 8303 is respectively connected with the 4G module 8308, the RS485 interface circuit I8309, the RS485 interface circuit II 8310 and the Bluetooth module 8311, and the I/O port of the singlechip 8303 is respectively connected with the clock chip 8307 and the EEPROM memory 8312.

In this embodiment, the water level monitoring sensor 16 is in data communication with the single chip microcomputer 8303 through an RS485 interface circuit one 8309, the soil moisture monitoring sensor 17 is in data communication with the single chip microcomputer 8303 through an RS485 interface circuit two 8310, and the intelligent lock 23 is in data communication with the single chip microcomputer 8303 through a bluetooth module 8311 in a wireless transmission mode;

the 4G module 8308 in this embodiment is used for wireless transmission of data, and the three-phase intelligent electric energy meter 8 inside the power box device as a terminal machine can realize data communication with the master station system through the 4G module 8308, wherein the data communication includes unlocking records of the intelligent lock 23, early warning information that a user personally opens the intelligent lock 23, information transmission of soil moisture status of a farmland, and the like.

Referring to fig. 4, in the present embodiment, the power module 8301 is an AC-DC power module with model number LS03-16B24SS, the output voltage is 24V, the input end of the power module 8301 is connected to a three-phase four-wire power line through the incoming switch 7, the output end of the power module 8301 is connected to the power management circuit 8302, and the power management circuit 8302 is used as a power supply unit of the system to respectively provide working power to the single chip microcomputer 8303, the three-phase electric energy metering chip 8304, the first contactor switch circuit 8305, the second contactor switch circuit 8306, the clock chip 8307, the 4G module 8308, the first RS485 interface circuit 8309, the second RS485 interface circuit 8310, the bluetooth module 8311, the EEPROM memory 8312, the liquid crystal display screen 84, the water level monitoring sensor 16, the soil moisture monitoring sensor 17, and the intelligent lock 23; wherein the liquid crystal display screen 84 is arranged on the surface of the shell of the three-phase intelligent electric energy meter 8.

Referring to fig. 7, the current sampling unit 81 and the voltage sampling unit 82 are respectively composed of three sets of current transformers and three sets of voltage transformers, input ends of the three sets of current transformers and the three sets of voltage transformers are respectively connected with three-phase power lines corresponding to output ends of the incoming line switch 7, and output ends of the three sets of current transformers and the three sets of voltage transformers are respectively connected with input ends of a three-phase electric energy metering chip 8304, a three-phase ac contactor one 9 and a three-phase ac contactor two 10;

the three groups of current transformers are respectively a current transformer I, a current transformer II and a current transformer III;

the three groups of voltage transformers are respectively a first voltage transformer, a second voltage transformer and a third voltage transformer.

Referring to fig. 1 and 2, the first chamber door 2 corresponds to a first chamber 5, and a first insulating gasket (not shown) is disposed at a position where the periphery of the back of the first chamber door 2 contacts the front of the first chamber 5, and is used for sealing;

the box door II 3 corresponds to the position of the chamber II 6, and an insulating sealing gasket II (not shown in the figure) is arranged at the contact position of the periphery of the back of the box door II 3 and the front of the chamber II 6 and is used for sealing;

the intelligent lock 23 and the second lock 32 are both arranged at the right side positions of the first box door 2 and the second box door 3, the intelligent lock 23 in the embodiment is provided with a standby battery, and when the power supply box device is powered off, the standby battery supplies power to the intelligent lock; in addition, this intelligent tool to lock 23 has the lock control early warning function, avoids the user to open chamber door 2 privately, destroys the inside three-phase intelligent ammeter 8 of device and other switching devices.

Referring to fig. 2, the two-dimensional code 21 is disposed at the left side of the top of the first box door 2, the first observation windows 22 are disposed at the right side of the two-dimensional code 22 at intervals, and the first observation windows 22 correspond to the positions of the liquid crystal display screen 84 of the three-phase intelligent electric energy meter 8.

The power box device in this embodiment realizes the electricity payment function by scanning the two-dimensional code 21 on the box door one 2 through the mobile phone, and since the mobile phone code scanning payment is a mature technology, details are not repeated in this embodiment.

Referring to fig. 3, a plurality of heat dissipation holes 4 are uniformly distributed in the middle of the left and right side surfaces of the box body 1, in addition, an outlet is formed in the inner bottom surface of the power box device, and the cable led out from the wiring terminal 13 and the cable connected with the water level monitoring sensor 16 and the soil moisture monitoring sensor 17 are led out of the box body through the outlet by threading pipes.

In the embodiment, a soil moisture monitoring sensor 17 is arranged, collected farmland soil moisture status data are transmitted to the single chip microcomputer 8303 through the RS485 interface circuit II 8310, the single chip microcomputer 8303 analyzes and processes the received data, compares the data with a soil moisture limit value set by a previous system, and informs a user of timely irrigation in a short message mode when the soil moisture is lower than a set value; when the soil moisture content is higher than a set value, the user is reminded of not allowing irrigation power utilization, and the user is reminded of reasonably utilizing the power and scientifically planting the field in a scientific guiding mode.

The specific implementation manner of automatic switching between the electricity for groundwater irrigation and the electricity for ditch water irrigation in the embodiment is as follows:

the water level monitoring sensor 16 is placed in the ditch water, the water level monitoring sensor 16 detects the data of the water level depth in the ditch in real time, the acquired water level depth data in the ditch is transmitted to the single chip microcomputer 8303 through the RS485 interface circuit I8309, the single chip microcomputer 8303 analyzes and processes the received data, the received data are compared with the water level data set by the previous system, when the actual water level data acquired by the water level monitoring sensor 16 is larger than the set value of the system, the water level of the ditch is judged to meet the irrigation condition, the single chip microcomputer 8303 drives the three-phase alternating current contactor II 10 to be electrified through the contactor switch circuit II 8306, the power is supplied to the ditch water irrigation water pump 15, and the ditch water is used for irrigating farmlands; when the collected actual water level data is smaller than a system set value, the fact that the irrigation water of the ditch cannot meet irrigation conditions is judged, the single chip microcomputer 8303 drives a three-phase alternating current contactor I9 to be powered on through a contactor switch circuit I8305, power is supplied to the underground water irrigation water pump 14, and at the moment, the underground water is used for irrigating farmlands (the underground water refers to water in a motor-pumped well); the whole process of driving the first three-phase alternating current contactor 9 and the second three-phase alternating current contactor 10 to be switched on and off is realized by the single chip microcomputer 8303 to control the first contactor switch circuit 8305 and the second contactor switch circuit 8306, and specific circuits of the first contactor switch circuit 8305 and the second contactor switch circuit 8306 are shown in fig. 5 and 6:

referring to fig. 5, the first contactor switch circuit 8305 is composed of resistors R1, R2, R3, R4, R5, R6, a transistor Q1, Q2, diodes D1, D2, a first relay 8313 and a second relay 8314, one end of the resistor R1 is connected to a P1 pin on the IO port of the single chip microcomputer, the other end of the resistor R1 is connected to one end of a resistor R2 and a base of the transistor Q1, the other end of the resistor R2 is connected to an emitter of the transistor Q1, collectors of the transistor Q1 are connected in parallel to an anode of the first relay 8303 control portion, a reverse end of the diode D1 and one end of a resistor R3, the other end of the resistor R3, a forward end of the diode D1 and a cathode of the first relay 8313 control portion are all grounded, a common terminal pin on the first relay 8313 is connected to an input power supply, a normally closed terminal pin is connected to the three-phase ac auxiliary contact 91 of the first contactor 9 control portion and a common terminal pin on the second relay 8314, a pin P2 on the IO port of the single chip microcomputer is connected to one end of a resistor R4, the other end of the resistor R4 is connected to one end of a resistor R5 and a base of a transistor Q2, the other end of the resistor R5 is connected to an emitter of a transistor Q2, collectors of the transistor Q2 are connected to an anode of a control part of the second relay 8314, a reverse end of a diode D2 and one end of a resistor R6 in parallel, the other end of the resistor R6, a forward end of the diode D2 and a cathode of the control part of the second relay 8314 are grounded, a normally closed end pin on the second relay 8314 is suspended, and the normally open end pin is connected to an auxiliary contact 91 (shown in fig. 8) of a control part of the first three-phase ac contactor 9.

Referring to fig. 6, the second contactor switch circuit 8306 is composed of resistors R7, R8, R9, R10, R11, R12, a transistor Q3, Q4, diodes D3, D4, a third relay 8315 and a fourth relay 8316, one end of the resistor R7 is connected to a P3 pin on the IO port of the single chip microcomputer, the other end of the resistor R7 is connected to one end of a resistor R8 and a base of the transistor Q3, the other end of the resistor R8 is connected to an emitter of the transistor Q3, collectors of the transistor Q3 are connected in parallel to an anode of the control portion of the third relay 8315, a reverse end of the diode D3 and one end of a resistor R9, the other end of the resistor R9, a forward end of the diode D3 and a cathode of the control portion of the third relay 8315 are all grounded, a common terminal pin on the third relay 8315 is connected to an input power supply, a normally closed terminal pin is connected to a floating terminal, and a normally closed terminal pin is connected to an auxiliary contact of the control portion of the three-phase ac contactor 10 and a common terminal on the fourth relay 8316, a P4 pin on the IO port of the single chip microcomputer is connected to one end of a resistor R10, the other end of a resistor R10 is connected to one end of a resistor R11 and a base of a transistor Q4, the other end of a resistor R11 is connected to an emitter of a transistor Q4, collectors of the transistor Q4 are connected to an anode of a control portion of a relay four 8316, a reverse end of a diode D4 and one end of a resistor R12 in parallel, the other end of the resistor R12, a forward end of the diode D4 and a cathode of the control portion of the relay four 8316 are grounded, a normally closed end pin on the relay four 8316 is suspended, and the normally open end pin is connected to an auxiliary contact of a control portion of a three-phase alternating current contactor two 10 (as shown in fig. 8).

The formula for calculating the set value of the depth of the water level of the trench in this embodiment is as follows:

H_s＝(H_b+H_g) X upsilon formula

Wherein H_sDepth of water level in trench set for system, H_bFor actual size height, H, of water pump placed in the trench_gThe water level value of the interior of the ditch, which is higher than the actual size of the water pump, is upsilon, which is a water level safety coefficient value. If the actual water level value H is more than or equal to H_sAnd allowing the ditch irrigation water pump to use electricity.

Referring to fig. 2, a service telephone and a meter box code 24 are further arranged below the first box door 2 from left to right, and the meter box code 24 is consistent with the asset code of the three-phase intelligent electric energy meter 8.

The purpose of setting up table case code 24 on box 1 in this embodiment is in practical application, because of the life of power supply box is longer, three-phase intelligent electric energy meter belongs to the electronic metering product, the condition of damage change appears easily, table case code 24 that sets up on the box is unanimous with three-phase intelligent electric energy meter 8's asset code, can realize power supply box and the one-to-one binding relation between the three-phase intelligent electric energy meter 8 of inside, if inside three-phase intelligent electric energy meter 8 damages, when changing three-phase intelligent electric energy meter 8, only need change background system power supply box and three-phase intelligent electric energy meter 8's asset code binding relation can, avoid the condition of changing the power supply box two-dimensional code, be convenient for fortune dimension personnel to change the electric energy meter.

Referring to fig. 9, a method for switching irrigation power consumption based on an intelligent power box device for code scanning power consumption includes the following steps:

step 1: the system is powered on and initialized;

step 2: the single chip microcomputer reads sampling data of the soil moisture monitoring sensor;

and step 3: judging whether the sampled data is smaller than a set limit value, if so, executing the step 4, otherwise, returning to the step 2 for circular execution;

and 4, step 4: sending information needing irrigation through a 4G module;

and 5: waiting whether an irrigation command is received, if the user receives the irrigation command, executing the step 6, and if not, returning to the step 4 to continuously send information needing irrigation;

step 6: the singlechip reads the sampling data of the water level monitoring sensor;

and 7: judging whether the sampled data is larger than a set value or not, if so, sending control signals by ports P3 and P4 of the single chip microcomputer to control the third relay and the fourth relay to be closed, driving the second three-phase alternating current contactor to be electrified, irrigating ditch water, and returning to the step 6 for circular execution; otherwise, the ports P1 and P2 of the single chip microcomputer send control signals to control the first relay and the second relay to be closed, the first three-phase alternating current contactor is driven to be electrified, underground water is irrigated, and the step 6 is returned to perform the circulating execution.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.