Intelligent power supply control system

Abstract

An intelligent power supply control system comprises a host and at least one slave, the host comprises a first single-chip microcomputer and a touch screen, the first single-chip microcomputer is connected with the touch screen through an RS232 communication module, the first single-chip microcomputer is connected with a first RS485 communication module, the first RS485 communication module is connected with a first Lora wireless module, and the first Lora wireless module is connected with a second Lora wireless module. Each slave machine comprises a second single-chip microcomputer, the second single-chip microcomputer is connected with a second RS485 communication module and a relay, and the second RS485 communication module is connected with a second Lora wireless module. According to the utility model, the switching time of the power supply can be set through the touch screen setting module, and the single-chip microcomputer remotely and automatically controls the slave through the Lora wireless module according to the setting of the touch screen, so that workers do not need to be arranged for overtime, and the labor intensity of the workers and the related labor cost can be reduced; workers do not need to operate on-off of a power supply through an electrical control box, and the risk of electric shock is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the electrical field especially relates to power control technology, and specifically relates to an intelligent power control system. BACKGROUND

[0002] In the prior art, the power management method of a factory is that when the factory is in operation, the staff makes the equipment run by closing the circuit breaker or the power switch, and when the factory is out of operation, the staff makes the equipment stop running by opening the circuit breaker or the power switch. The above operation needs to be completed manually, and some electrical equipment needs to be started in advance for preheating before the factory is in operation and needs to be turned off after the factory is out of operation, which requires staff to work overtime, increases the labor cost, and the switch of the electrical control box has a certain risk of electric shock. SUMMARY

[0003] The utility model aims at providing an intelligent power control system, which solves the technical problems of the power management of a factory in the prior art, which relies on manual operation and has a risk of electric shock.

[0004] The intelligent power control system comprises a host computer and at least one slave computer, the host computer comprises a first single-chip microcomputer and a touch screen, the first single-chip microcomputer is connected with the touch screen through an RS232 communication module, the first single-chip microcomputer is connected with a first RS485 communication module, the first RS485 communication module is connected with a first Lora wireless module, each of the slave computers comprises a second single-chip microcomputer, the second single-chip microcomputer is connected with a second RS485 communication module and a relay, the second RS485 communication module is connected with a second Lora wireless module, and each of the slave computers is connected with the first Lora wireless module of the host computer through the second RS485 communication module and the second Lora wireless module to establish a wireless communication network.

[0005] Further, the relay is arranged in the power supply line of the equipment in the factory.

[0006] Further, the utility model also comprises a host computer, the host computer comprises a computer, the computer is connected with a USB-to-RS485 communication module, the RS485 communication module is connected with a Lora wireless module, and the computer is connected with the first Lora wireless module of the host computer through the RS485 communication module and the Lora wireless module to realize parameter setting of the host computer and data feedback of the host computer.

[0007] Further, the second single-chip microcomputer adopts the same circuit as the first single-chip microcomputer.

[0008] Further, the second RS485 communication module adopts the same circuit as the first RS485 communication module.

[0009] Further, the second Lora wireless module adopts the same circuit as the first Lora wireless module.

[0010] Further, the first single-chip microcomputer is AT32F415.

[0011] The RS232 communication module comprises a first conversion chip, the first conversion chip is MAX3232, the first conversion chip is connected with the touch screen through the touch screen interface, the No. 7 pin of the first conversion chip is connected with the No. 4 pin of the touch screen interface, the No. 8 pin of the first conversion chip is connected with the No. 3 pin of the touch screen interface, the No. 9 pin of the first conversion chip is connected with the No. 59 pin of the first single-chip microcomputer, and the No. 10 pin of the first conversion chip is connected with the No. 58 pin of the first single-chip microcomputer.

[0012] The first RS485 communication module comprises a second conversion chip, the second conversion chip is MAX3485, the second conversion chip is connected with the first Lora wireless module through the RS485 interface, the No. 1 pin of the second conversion chip is connected with the No. 54 pin of the first single-chip microcomputer, the No. 2 pin and the No. 3 pin of the second conversion chip are connected with the No. 52 pin of the first single-chip microcomputer, the No. 4 pin of the second conversion chip is connected with the No. 53 pin of the first single-chip microcomputer, the No. 6 pin of the second conversion chip is connected with the No. 3 pin of the RS485 interface, and the No. 7 pin of the second conversion chip is connected with the No. 4 pin of the RS485 interface.

[0013] Further, the No. 7 pin of the second conversion chip is connected with one end of a third resistor, the other end of the third resistor is connected with one end of a sixteenth resistor and one end of a first impedance device, the other end of the sixteenth resistor is connected with the No. 1 pin of a termination resistance interface, the other end of the first impedance device is connected with the No. 4 pin of the RS485 interface, the No. 6 pin of the second conversion chip is connected with one end of a tenth resistor, the other end of the tenth resistor is connected with the No. 2 pin of the termination resistance interface and one end of a second impedance device, the other end of the second impedance device is connected with the No. 3 pin of the RS485 interface, and the termination resistance interface is connected with a termination resistance.

[0014] Further, the other end of the tenth resistor is also connected with the negative electrode of a fifth diode and one end of a nineteenth capacitor, the positive electrode of the fifth diode and the other end of the nineteenth capacitor are grounded, and the other end of the third resistor is also connected with the negative electrode of a sixth diode and one end of a twentieth capacitor, the positive electrode of the sixth diode and the other end of the twentieth capacitor are grounded.

[0015] The utility model discloses compared with prior art, its effect is positive and obvious. The utility model discloses can set the power switch time through touch screen setting module, and singlechip is set through Lora wireless module to remote automatic control of slave according to touch screen, need not arrange personnel overtime, can reduce personnel labor intensity related artificial cost, and staff need not through electrical control box operation power on-off, reduced the risk of electric shock. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structure diagram of the utility model.

[0017] Figure 2 It is the circuit diagram of the first singlechip of the utility model.

[0018] Figure 3 It is the circuit diagram of the RS232 communication module of the utility model.

[0019] Figure 4 It is the circuit diagram of the first RS485 communication module of the utility model.

[0020] Among them, 1 is host computer, 101 is touch screen, 102 is RS232 communication module, 103 is first RS485 communication module, 104 is first Lora communication module, 2 is slave, 201 is second Lora communication module, 202 is second RS485 communication module, 203 is relay, 3 is host computer, DETAILED DESCRIPTION

[0021] The utility model will be further described below in connection with the drawings and examples, but not therefore limit the utility model.

[0022] As Figures 1-4 The utility model discloses intelligent power control system, including a host computer 1 and at least one slave 2, the host computer 1 including a first singlechip U1 and a touch screen 101, the first singlechip U1 be connected with the touch screen 101 through RS232 communication module, and first singlechip U1 is connected with first RS485 communication module 103, first RS485 communication module is connected with first Lora wireless module 104, and any one slave 2 each includes a second singlechip U2, second singlechip U2 is connected with second RS485 communication module 202 and relay 203, and second RS485 communication module 202 is connected with second Lora wireless module 201, and any one slave 2 each through the second RS485 communication module 202 and second Lora wireless module 201 of its connection with the first Lora wireless module 104 of host computer 1 establishes wireless communication network.

[0023] Further, the relays 203 are respectively arranged in power supply lines of the factory equipment.

[0024] Further, the host computer 3 is further included, the host computer 3 includes a computer 301, the computer 301 is connected with a USB to RS485 communication module 302, the RS485 communication module 302 is connected with a Lora wireless module 303, and the computer is connected with the first Lora wireless module 104 of the host computer 1 through the RS485 communication module 302 and the Lora wireless module 303 to establish wireless communication connection, so that the parameter setting of the host computer 1 and the data feedback of the host computer 1 are received.

[0025] Further, the second single-chip microcomputer U2 adopts the same circuit as the first single-chip U1.

[0026] Further, the second RS485 communication module 202 adopts the same circuit as the first RS485 communication module 103.

[0027] Further, the second Lora wireless module 201 adopts the same circuit as the first Lora wireless module 104.

[0028] Further, the first single-chip microcomputer U1 is AT32F415.

[0029] The RS232 communication module 102 includes a first conversion chip U5, the first conversion chip U5 is MAX3232, the first conversion chip U5 is connected with the touch screen 101 through a touch screen interface J5, the 7th pin of the first conversion chip U5 is connected with the 4th pin of the touch screen interface J5, the 8th pin of the first conversion chip U5 is connected with the 3rd pin of the touch screen interface J5, the 9th pin of the first conversion chip U5 is connected with the 59th pin of the first single-chip microcomputer U1, and the 10th pin of the first conversion chip U5 is connected with the 58th pin of the first single-chip microcomputer U1.

[0030] The first RS485 communication module 103 includes a second conversion chip U3, the second conversion chip U3 is MAX3485, the second conversion chip U3 is connected with the first Lora wireless module 104 through an RS485 interface P1, the 1st pin of the second conversion chip U3 is connected with the 54th pin of the first single-chip microcomputer, the 2nd pin and the 3rd pin of the second conversion chip U3 are connected with the 52nd pin of the first single-chip microcomputer U1, the 4th pin of the second conversion chip U3 is connected with the 53rd pin of the first single-chip microcomputer U1, the 6th pin of the second conversion chip U3 is connected with the 3rd pin of the RS485 interface P1, and the 7th pin of the second conversion chip U3 is connected with the 4th pin of the RS485 interface P1.

[0031] Further, the No. 7 pin of the second conversion chip U3 is connected with one end of the third resistor R3, the other end of the third resistor R3 is connected with one end of the sixteenth resistor R16 and one end of the first impedance Z1, the other end of the sixteenth resistor R16 is connected with the No. 1 pin of the termination resistance interface K1, the other end of the first impedance Z1 is connected with the No. 4 pin of the RS485 interface P1, the No. 6 pin of the second conversion chip U3 is connected with one end of the tenth resistor R10, the other end of the tenth resistor R10 is connected with the No. 2 pin of the termination resistance interface K2 and one end of the second impedance Z2, the other end of the second impedance Z2 is connected with the No. 3 pin of the RS485 interface, and the termination resistance interface K1 is connected with a termination resistance (not shown in the figure).

[0032] Further, the other end of the tenth resistor R10 is also connected with the negative electrode of the fifth diode D5 and one end of the nineteenth capacitor C19, the positive electrode of the fifth diode D5 and the other end of the nineteenth capacitor C19 are grounded, and the other end of the third resistor R3 is also connected with the negative electrode of the sixth diode D6 and one end of the twentieth capacitor C20, the positive electrode of the sixth diode D6 and the other end of the twentieth capacitor C20 are grounded.

[0033] When the utility model is used, first, the time period is set through the touch screen 101, the RS232 drive circuit is constructed between the first singlechip U1 and the touch screen 101 through the first conversion chip U5, the No. 58 pin and the No. 59 pin of the singlechip U1 form the full duplex serial communication mode with the touch screen, and the baud rate is 115200bit / s, and 20K capacity data exchange can be carried out within 30s, which is used for setting the time period of power on-off.

[0034] The first singlechip U1 has a UART (universal asynchronous receiving / transmitting) port for serial communication, occupies two pins of the No. 53 pin and the No. 54 pin, uses the second function of the two pins, the No. 53 pin is a serial data sending end TX5, and the No. 54 pin is a serial data receiving end RX5. The first singlechip U1 sets the time period according to different production lines on the touch screen, when the time is less than or equal to the start time, the first singlechip U1 will first make the No. 52 pin 485_EN high level, that is, the No. 2 pin RE and the No. 3 pin DE of the second conversion chip U3 are high level, at this time, the No. 53 pin of the first singlechip U1, that is, the TX5 port of the serial port sends serial port data to the second conversion chip U3 according to the relevant protocol at the baud rate of 115200bit / s, after the first singlechip U1 sends the data, the No. 52 pin 485_EN of the first singlechip U1 and the No. 2 pin RE and the No. 3 pin DE of the second conversion chip U3 are converted from high level to low level, that is, from the sending state to the receiving state, and are ready to receive the 485 serial port data of the slave 2.

[0035] 485 communication adopts differential design, that is, two-way data transmission lines A and B are connected with the A and B of the 485 interface of the other party, the No. 6 pin and No. 7 pin of the second conversion chip U3 send A and B two-way signals to the RS485 interface P1, the data communication between the RS485 interface P1 of the first Lora wireless communication module 104 connected with the second conversion chip U3 is realized, after the first Lora wireless communication module 104 receives the data, the relevant protocol data is converted into a radio frequency signal and transmitted through the antenna of itself, the second Lora wireless communication module 201 of the slave machine 2 receives the radio frequency signal through the antenna, and converts the radio frequency conversion signal into corresponding data and sends it to the second single-chip microcomputer U2 of the slave machine through the second RS485 communication module 202, the second single-chip microcomputer U2 controls the on-off of the relay 203 in the power supply circuit of the factory equipment according to the relevant instructions, so as to realize the on-off control of the power supply.

[0036] The second single-chip microcomputer U2, the second RS485 communication module 202 and the second Lora wireless module 201 of the slave machine 2 can realize the wireless communication between the master machine 1 and the slave machine 2 by using the same circuit as the master machine 1.

[0037] The host computer 3 can realize parameter setting of the host computer 2 and receiving data feedback of the host computer 2, the host computer 3 includes a computer 301, when using the computer 301 and the wireless Lora to directly communicate, the USB interface of the computer can be used, the Lora wireless communication module 303 is connected through the USB to RS485 communication module 302, and then the first Lora wireless communication module 104 is connected through the Lora wireless communication module 303, the first Lora wireless communication module 104 is connected with the first single-chip microcomputer U1 through the first RS485 communication module 103, so as to realize the communication with the first single-chip microcomputer U1 of the host computer 1.

[0038] The third resistor R3 and the tenth resistor R10 can protect the second conversion chip U3. The first impedance Z1 and the second impedance Z2 can protect the Lora wireless module P1 and also have the function of anti-interference. The terminating resistor K2 can reduce the reflection and echo of the 485 signal, has the function of anti-interference, and the sixteenth resistor R16 can protect the terminating resistor K2.

[0039] The fifth diode D5 and the sixth diode D6 are stable voltage diodes, which can be reversely broken down when the voltage is too high, so as to protect the second conversion chip U3 and the Lora wireless module P1 from being damaged. The nineteenth capacitor C19 and the twentieth capacitor have the function of filtering to make the signal more stable.

Claims

1. An intelligent power supply control system, characterized in that, include: The system comprises a master unit and at least one slave unit. The master unit includes a first microcontroller and a touchscreen. The first microcontroller is connected to the touchscreen via an RS232 communication module and is connected to a first RS485 communication module. The first RS485 communication module is connected to a first LoRa wireless module. Each slave unit includes a second microcontroller. The second microcontroller is connected to a second RS485 communication module and a relay. The second RS485 communication module is connected to a second LoRa wireless module. Each slave unit establishes a wireless communication network with the master unit's first LoRa wireless module through its connected second RS485 communication module and second LoRa wireless module.

2. The intelligent power control system as described in claim 1, characterized in that: Each of the relays is installed in the power supply line of the factory equipment.

3. The intelligent power control system as described in claim 1, characterized in that: It also includes a host computer, which is connected to a USB to RS485 communication module. The RS485 communication module is connected to a LoRa wireless module. The computer establishes a wireless communication connection with the host's LoRa wireless module through the RS485 and LoRa wireless modules to enable parameter settings on the host and to receive data from the host.

4. The intelligent power control system as described in claim 1, characterized in that: The second microcontroller uses the same circuit as the first microcontroller.

5. The intelligent power control system as described in claim 1, characterized in that: The second RS485 communication module uses the same circuit as the first RS485 communication module.

6. The intelligent power control system as described in claim 1, characterized in that: The second Lora wireless module uses the same circuitry as the first Lora wireless module.

7. The intelligent power control system as described in claim 1, characterized in that: The first microcontroller is an AT32F415; The RS232 communication module includes a first conversion chip, which is a MAX3232. The first conversion chip is connected to the touch screen through the touch screen interface. Pin 7 of the first conversion chip is connected to pin 4 of the touch screen interface, pin 8 of the first conversion chip is connected to pin 3 of the touch screen interface, pin 9 of the first conversion chip is connected to pin 59 of the first microcontroller, and pin 10 of the first conversion chip is connected to pin 58 of the first microcontroller. The first RS485 communication module includes a second conversion chip, which is a MAX3485. The second conversion chip is connected to the first LoRa wireless module through an RS485 interface. Pin 1 of the second conversion chip is connected to pin 54 of the first microcontroller, pins 2 and 3 of the second conversion chip are connected to pin 52 of the first microcontroller, pin 4 of the second conversion chip is connected to pin 53 of the first microcontroller, pin 6 of the second conversion chip is connected to pin 3 of the RS485 interface, and pin 7 of the second conversion chip is connected to pin 4 of the RS485 interface.

8. The intelligent power control system as described in claim 7, characterized in that: Pin 7 of the second conversion chip is connected to one end of the third resistor. The other end of the third resistor is connected to one end of the sixteenth resistor and one end of the first impedance. The other end of the sixteenth resistor is connected to pin 1 of the terminating resistor interface. The other end of the first impedance is connected to pin 4 of the RS485 interface. Pin 6 of the second conversion chip is connected to one end of the tenth resistor. The other end of the tenth resistor is connected to pin 2 of the terminating resistor interface and one end of the second impedance. The other end of the second impedance is connected to pin 3 of the RS485 interface. The terminating resistor interface is connected to the terminating resistor.

9. The intelligent power control system as described in claim 8, characterized in that: The other end of the tenth resistor is also connected to the negative terminal of the fifth diode and one end of the nineteenth capacitor. The positive terminal of the fifth diode and the other end of the nineteenth capacitor are grounded. The other end of the third resistor is also connected to the negative terminal of the sixth diode and one end of the twentieth capacitor. The positive terminal of the sixth diode and the other end of the twentieth capacitor are grounded.

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