Control system of electric tightener

Abstract

The utility model belongs to the technical field of electric tightener control, and particularly discloses a control system of an electric tightener, which comprises a voltage sampling circuit, a Bluetooth communication circuit, a main control chip circuit, a 485 communication circuit, a speed regulation steering circuit, a tension parameter transmission circuit, a control circuit, an interface circuit and a temperature sampling circuit. The main control chip circuit is respectively connected with the voltage sampling circuit, the Bluetooth communication circuit, the 485 communication circuit, the speed regulation steering circuit, the tension parameter transmission circuit and the control circuit; the interface circuit is respectively connected with the 485 communication circuit, the speed regulation steering circuit, the tension parameter transmission circuit and the control circuit; the voltage sampling circuit is used for collecting the voltage of the tightener, the main control chip circuit is used for achieving the control function of the whole system, the speed regulation steering circuit is used for adjusting the speed and steering of a motor, the tension parameter transmission circuit is used for transmitting the tension collected by the tension sensor to the main control chip circuit, and the control circuit is used for controlling the motor to start and stop. The interface circuit is used for realizing the connection between the tightener driver and the control system, and the temperature sampling circuit is used for collecting the environment temperature. According to the system, the speed and the steering of the motor are adjusted, and then the tension of the cable is accurately adjusted.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric wire tightener control, and specifically relates to a control system of an electric wire tightener. Background Art

[0002] An electric wire tightener is a device used to tighten wires during the construction of overhead line laying. With the improvement of the intelligent level of the power system, the requirements for the control system of the electric wire tightener are also getting higher and higher. There are generally some problems in the existing control systems of electric wire tighteners. For example, the working state of the device cannot be monitored in real time, the wire tension cannot be effectively adjusted under different loads and working conditions, and the operation flexibility is poor, etc., resulting in the control system being unable to meet the needs of the intelligent development of modern power systems. Based on this, this application proposes a control system of an electric wire tightener. Content of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the technical problem to be solved by the utility model is to propose a control system of an electric wire tightener.

[0004] The utility model solves the above technical problems by adopting the following technical solutions:

[0005] A control system of an electric wire tightener includes a voltage sampling circuit, a Bluetooth communication circuit, a main control chip circuit, a 485 communication circuit, a speed regulation and steering circuit, a tension parameter transmission circuit, a control circuit, an interface circuit, and a temperature sampling circuit; the main control chip circuit is respectively connected to the voltage sampling circuit, the Bluetooth communication circuit, the 485 communication circuit, the speed regulation and steering circuit, the tension parameter transmission circuit, and the control circuit; the interface circuit is respectively connected to the 485 communication circuit, the speed regulation and steering circuit, the tension parameter transmission circuit, and the control circuit;

[0006] The speed control and steering circuit includes a second operational amplifier, a third operational amplifier, a dual NPN transistor, a seventh resistor, an eighth resistor, an eleventh resistor, a thirteenth resistor, a fourteenth resistor, an eighteenth resistor, a nineteenth resistor, a twenty-eighth resistor, a twenty-ninth resistor, a thirtieth resistor, and a thirty-first resistor; wherein, the output terminal of the second operational amplifier is connected to one ends of the seventh resistor and the fourteenth resistor, and the other end of the seventh resistor is connected to the interface circuit; the inverting input terminal of the second operational amplifier is connected to the other end of the fourteenth resistor and one end of the nineteenth resistor, the non-inverting input terminal of the second operational amplifier is connected to one end of the eighth resistor and one end of the eleventh resistor, the other end of the eighth resistor is connected to the main control chip circuit, the other end of the eleventh resistor is simultaneously connected to one end of the thirteenth resistor and one end of the eighteenth resistor, the other end of the thirteenth resistor is connected to the main control chip circuit, and the other end of the eighteenth resistor and the other end of the nineteenth resistor are grounded; the non-inverting input terminal of the third operational amplifier is simultaneously connected to one end of the twenty-eighth resistor and one end of the thirty-first resistor, the other end of the twenty-eighth resistor is connected to the power supply, and the other end of the thirty-first resistor is grounded; the output terminal of the third operational amplifier is simultaneously connected to the inverting input terminal, one ends of the twenty-ninth resistor and the thirtieth resistor, the C1 pin of the dual NPN transistor is simultaneously connected to the other end of the twenty-ninth resistor and the interface circuit, the E2 pin and the E1 pin of the dual NPN transistor are both grounded, the B2 pin of the dual NPN transistor is connected to the main control chip circuit, the C2 pin of the dual NPN transistor and the other end of the thirtieth resistor are simultaneously connected to the interface circuit, and the B1 pin of the dual NPN transistor is connected to the main control chip circuit.

[0007] Further, the voltage sampling circuit includes a zener diode, a third diode, a sixteenth resistor, a twenty-second resistor, and a sixth capacitor; wherein, the negative electrode of the third diode is connected to the VCC power supply, the positive electrode of the third diode, one end of the sixth capacitor, one end of the sixteenth resistor, and one end of the twenty-second resistor are simultaneously connected to the main control chip circuit, the other end of the sixth capacitor and the other end of the twenty-second resistor are grounded, the other end of the sixteenth resistor is connected to the positive electrode of the zener diode, and the negative electrode of the zener diode is connected to the main power supply.

[0008] Further, the tensile force parameter transmission circuit includes a first operational amplifier, a first capacitor, a second diode, and third to sixth resistors. The output terminal of the first operational amplifier is connected to the inverting input terminal and one end of the fourth resistor at the same time. The other end of the fourth resistor is connected to the positive electrode of the second diode and the main control chip circuit. The negative electrode of the second diode is connected to the VCC power supply. The non-inverting input terminal of the first operational amplifier is connected to one end of the sixth resistor, one end of the fifth resistor, and one end of the third resistor at the same time. The other ends of the third resistor and the fifth resistor are connected to the interface circuit at the same time. The negative power supply pin of the first operational amplifier, the other end of the sixth resistor, and one end of the first capacitor are grounded at the same time. The positive power supply pin of the first operational amplifier and the other end of the first capacitor are connected to the power supply for power supply.

[0009] Further, the control circuit includes an HF46F / 12-HS1 power relay, a first resistor, a second resistor, a first diode, and a first triode. The pin 1 of the HF46F / 12-HS1 power relay is connected to the power supply for power supply through the negative electrode of the first diode. The pin 2 of the HF46F / 12-HS1 power relay is connected to the collector terminal of the first triode. The base terminal of the first triode is connected to one end of the first resistor and one end of the second resistor. The positive electrode of the first diode, the emitter terminal of the first triode, and the other end of the second resistor are grounded. The other end of the first resistor is connected to the main control chip circuit. The pin 3 of the HF46F / 12-HS1 power relay is connected to the main power supply, and the pin 4 is connected to the interface circuit.

[0010] Further, the system further includes a peripheral circuit for prompting whether the control system is normal. The peripheral circuit includes a third pin connector, a second triode, a buzzer, a thirty-ninth resistor, a third light-emitting diode, a forty-second resistor, a forty-third resistor, an eleventh capacitor, a fourth diode, and a thirty-eighth resistor. The pin 1 of the third pin connector is connected to the VCC power supply. The pin 2 of the third pin connector is connected to the main control chip circuit. The pin 3 of the third pin connector is connected to the main control chip circuit. The pin 4 of the third pin connector is grounded. The base terminal of the second triode is connected to one end of the forty-second resistor. The other end of the forty-second resistor is connected to one end of the forty-third resistor and the main control chip circuit at the same time. The emitter terminal of the second triode and the other end of the forty-third resistor are grounded. The collector terminal of the second triode is connected to one end of the eleventh capacitor, the positive electrode of the fourth diode, and the negative electrode of the buzzer at the same time. The negative electrode of the fourth diode, the positive electrode of the buzzer, and one end of the thirty-eighth resistor are connected. The other end of the eleventh capacitor and the other end of the thirty-eighth resistor are connected to the power supply for power supply. The negative electrode of the third light-emitting diode is connected to the main control chip circuit. The positive electrode of the third light-emitting diode is connected to one end of the thirty-ninth resistor. The other end of the thirty-ninth resistor is connected to the VCC power supply.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. The system uses distributed sensing technology for data acquisition to achieve real-time monitoring of the motor working state; the speed and steering of the motor are dynamically adjusted through the speed regulation and steering circuit to achieve precise adjustment of the cable tension, solving the problem that the existing system cannot regulate the speed and significantly improving the intelligent level of the electric wire tightener.

[0013] 2. The long-distance and stable transmission of data such as cable tension and motor speed is realized through the 485 communication circuit, ensuring the reliability and real-time nature of data transmission. The wireless transmission and remote monitoring of data are realized through the Bluetooth communication circuit, further improving the convenience of the wire tightener operation, allowing users to set, read and monitor the working parameters of the device at any time, and significantly improving the management efficiency of the device. Therefore, the electric wire tightener not only expands the application scenarios and can adapt to complex industrial control requirements, but also greatly reduces the management difficulty of the device, improving the scalability and anti-interference ability of the system.

[0014] 3. When an abnormality occurs in the wire tightener, the control circuit can timely control it to stop running, avoiding damage to the wire tightener and enabling it to operate stably under complex working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the basic structural block diagram of the present utility model (the power supply circuit and the temperature sampling circuit are removed);

[0016] Figure 2 is the circuit diagram of the main control chip of the present utility model;

[0017] Figure 3 is the control circuit diagram of the present utility model;

[0018] Figure 4 is the power supply circuit diagram of the present utility model;

[0019] Figure 5 is the speed regulation and steering circuit diagram of the present utility model;

[0020] Figure 6 is the Bluetooth communication circuit diagram of the present utility model;

[0021] Figure 7 is the storage circuit diagram of the present utility model;

[0022] Figure 8 is the peripheral circuit diagram of the present utility model;

[0023] Figure 9 is the tension parameter transmission circuit diagram of the present utility model;

[0024] Figure 10This is the temperature sampling circuit diagram of the present utility model;

[0025] Figure 11 This is the voltage sampling circuit diagram of the present utility model;

[0026] Figure 12 This is the interface circuit diagram of the present utility model;

[0027] Figure 13 This is the 485 communication circuit diagram of the present utility model. Specific embodiments

[0028] The following provides specific embodiments in conjunction with the accompanying drawings. The specific embodiments are only used to introduce the technical solutions of the present utility model in detail and do not limit the protection scope of this application.

[0029] The present utility model provides a control system for an electric wire tightener, including a voltage sampling circuit, a Bluetooth communication circuit, a storage circuit, a peripheral circuit, a main control chip circuit, a 485 communication circuit, a speed regulation and steering circuit, a tension parameter transmission circuit, a control circuit, an interface circuit, a temperature sampling circuit, and a power supply circuit;

[0030] Among them, the main control chip circuit is respectively connected to the voltage sampling circuit, the Bluetooth communication circuit, the storage circuit, the peripheral circuit, the 485 communication circuit, the speed regulation and steering circuit, the tension parameter transmission circuit, and the control circuit. The interface circuit is respectively connected to the 485 communication circuit, the speed regulation and steering circuit, the tension parameter transmission circuit, and the control circuit. The voltage sampling circuit is used to collect the voltage of the wire tightener. The Bluetooth communication circuit is used to realize the communication between the wire tightener and the mobile control terminal. The storage circuit is used to store the tension setting and the address of the mobile control terminal. The peripheral circuit is used to prompt whether the control system is normal. The main control chip circuit is used to realize the control function of the entire system. The 485 communication circuit is used to realize the communication between the wire tightener driver and this control system, and transmit the current of the wire tightener driver to the main control chip circuit. The speed regulation and steering circuit is used to adjust the speed and steering of the motor. The tension parameter transmission circuit is used to transmit the tension collected by the tension sensor to the main control chip circuit. The control circuit is used to control the start and stop of the motor. The interface circuit is used to realize the connection between the wire tightener driver and this control system. The temperature sampling circuit is used to collect the ambient temperature. The power supply circuit supplies power to this control system.

[0031] Such as Figure 2As shown in the figure, the main control chip circuit includes the STM32G070CBT6 main control chip U4, the thirty-second resistor R32, the thirty-third resistor R33, the thirty-fourth resistor R34, the thirty-sixth resistor R36, the thirty-seventh resistor R37, and the seventh capacitor C7 to the tenth capacitor C10. Among them, the VBAT pin, VREF+ pin, and VDD / VDDA pin of the STM32G070CBT6 main control chip U4 are all connected to the VCC power supply, and the VSS / VSSA pin is grounded. The PA1 pin of the STM32G070CBT6 main control chip U4 is connected to one end of the thirty-fourth resistor R34, and the other end of the thirty-fourth resistor R34 is connected to the VCC power supply. The PA2 pin of the STM32G070CBT6 main control chip U4 is connected to one end of the thirty-sixth resistor R36, and the PA3 pin is connected to one end of the thirty-seventh resistor R37. The other ends of the thirty-sixth resistor R36 and the thirty-seventh resistor R37 are connected in parallel and then connected to the VCC power supply. The PA9 pin of the STM32G070CBT6 main control chip U4 is connected to one end of the thirty-third resistor R33, and the PA10 pin is connected to one end of the thirty-second resistor R32. The other ends of the thirty-third resistor R33 and the thirty-second resistor R32 are connected in parallel and then connected to the VCC power supply. One ends of the seventh capacitor C7, the eighth capacitor C8, the ninth capacitor C9, and the tenth capacitor C10 are connected in parallel to the ground, and the other ends of the seventh capacitor C7, the eighth capacitor C8, the ninth capacitor C9, and the tenth capacitor C10 are connected in parallel and then connected to the VCC power supply.

[0032] As Figure 3 shown in the figure, the control circuit includes the HF46F / 12-HS1 power relay K1, the first resistor R1, the second resistor R2, the first diode D1, and the first triode Q1. Among them, the 1st pin of the HF46F / 12-HS1 power relay K1 is connected to the negative pole of the first diode D1 to supply the power supply (+12V). The 2nd pin of the HF46F / 12-HS1 power relay K1 is connected to the collector terminal of the first triode Q1. The base terminal of the first triode Q1 is connected to one end of the first resistor R1 and one end of the second resistor R2. The positive pole of the first diode D1, the emitter terminal of the first triode Q1, and the other end of the second resistor R2 are all grounded. The other end of the first resistor R1 is connected to the BRAKE_CTRL pin of the STM32G070CBT6 main control chip U4. The 3rd pin of the HF46F / 12-HS1 power relay K1 is connected to the main power supply (+36V), and the 4th pin is connected to the BRAKE_OUT pin of the first pin connector CN1 of the interface circuit.

[0033] As Figure 4As shown, the power supply circuit includes an LM2596S buck converter U1, an LP2985-33DBVRE4 Bluetooth power supply module U2, an L78L33ABUTR linear voltage regulator U3, a first switch P1, a ninth resistor R9, a tenth resistor R10, a seventeenth resistor R17, a first electrolytic capacitor EC1, a second electrolytic capacitor EC2, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a first light-emitting diode DL1, and a fourth light-emitting diode DL4; among them, the IN+ pin of the LM2596S buck converter U1 is connected to the 2nd pin of the first switch P1, and the 1st pin of the first switch P1 is connected to the main power supply (+36V); the IN- pin and OUT- pin of the LM2596S buck converter U1 are grounded, and the OUT+ pin of the LM2596S buck converter U1 is connected to the power supply (+12V); the VIN pin of the LP2985-33DBVRE4 Bluetooth power supply module U2 is simultaneously connected to the power supply (+12V), one end of the second capacitor C2, and the positive electrode of the first electrolytic capacitor EC1. The GND pin of the LP2985-33DBVRE4 Bluetooth power supply module U2, the other end of the second capacitor C2, the negative electrode of the first electrolytic capacitor EC1, and one end of the ninth resistor R9 are connected and then grounded. The ON / OFF# pin of the LP2985-33DBVRE4 Bluetooth power supply module U2 is connected to the other end of the ninth resistor R9 and the BT_EN pin of the STM32G070CBT6 main control chip U4. The BYPASS pin of the LP2985-33DBVRE4 Bluetooth power supply module U2 is connected to one end of the third capacitor C3. The VOUT pin of the LP2985-33DBVRE4 Bluetooth power supply module U2 is simultaneously connected to the BT3V3 power supply, the positive electrode of the second electrolytic capacitor EC2, and the positive electrode of the first light-emitting diode DL1. The negative electrode of the first light-emitting diode DL1 is connected to one end of the seventeenth resistor R17. The other end of the seventeenth resistor R17, the other end of the third capacitor C3, and the negative electrode of the second electrolytic capacitor EC2 are grounded; the OUT pin of the L78L33ABUTR linear voltage regulator U3 is connected to the VCC power supply, one end of the fourth capacitor C4, one end of the fifth capacitor C5, and one end of the tenth resistor R10. The other end of the tenth resistor R10 is connected to the positive electrode of the fourth light-emitting diode DL4. The negative electrode of the fourth light-emitting diode DL4, the other end of the fourth capacitor C4, the other end of the fifth capacitor C5, and the GND pin of the L78L33ABUTR linear voltage regulator U3 are grounded. The IN pin of the L78L33ABUTR linear voltage regulator U3 is connected to the power supply (+12V).

[0034] As Figure 5As shown, the speed control and steering circuit includes a second operational amplifier U6B, a third operational amplifier U6C, a dual NPN transistor CQ1, a seventh resistor R7, an eighth resistor R8, an eleventh resistor R11, a thirteenth resistor R13, a fourteenth resistor R14, an eighteenth resistor R18, a nineteenth resistor R19, a twenty-eighth resistor R28, a twenty-ninth resistor R29, a thirtieth resistor R30, and a thirty-first resistor R31; wherein, the output terminal of the second operational amplifier U6B is connected to one end of the seventh resistor R7 and one end of the fourteenth resistor R14, and the other end of the seventh resistor R7 is connected to the MOTO_SPEED_OUT pin of the first pin connector CN1; the inverting input terminal of the second operational amplifier U6B is connected to the other end of the fourteenth resistor R14 and one end of the nineteenth resistor R19, the non-inverting input terminal of the second operational amplifier U6B is connected to one end of the eighth resistor R8 and one end of the eleventh resistor R11, the other end of the eighth resistor R8 is connected to the SPEED1 pin of the STM32G070CBT6 main control chip U4, the other end of the eleventh resistor R11 is simultaneously connected to one end of the thirteenth resistor R13 and one end of the eighteenth resistor R18, the other end of the thirteenth resistor R13 is connected to the SPEED0 pin of the STM32G070CBT6 main control chip U4, and the other end of the eighteenth resistor R18 and the other end of the nineteenth resistor R19 are grounded; the non-inverting input terminal of the third operational amplifier U6C is simultaneously connected to one end of the twenty-eighth resistor R28 and one end of the thirty-first resistor R31, the other end of the twenty-eighth resistor R28 is connected to the power supply (+12V), and the other end of the thirty-first resistor R31 is grounded; the output terminal of the third operational amplifier U6C is simultaneously connected to the inverting input terminal, one end of the twenty-ninth resistor R29, and one end of the thirtieth resistor R30, the C1 pin of the dual NPN transistor CQ1 is simultaneously connected to the other end of the twenty-ninth resistor R29 and the FORWARD_OUT pin of the first pin connector CN1, the E2 pin and the E1 pin of the dual NPN transistor CQ1 are grounded, the B2 pin of the dual NPN transistor CQ1 is connected to the FORWARD_CTRL pin of the STM32G070CBT6 main control chip U4, the C2 pin of the dual NPN transistor CQ1 and the other end of the thirtieth resistor R30 are simultaneously connected to the REVERSE_OUT pin of the first pin connector CN1, and the B1 pin of the dual NPN transistor CQ1 is connected to the PB1 pin of the STM32G070CBT6 main control chip U4.

[0035] As Figure 6As shown, the Bluetooth communication circuit includes a Bluetooth module U5, a second light-emitting diode DL2, and a thirty-fifth resistor R35. Among them, the RX pin of the Bluetooth module U5 is connected to the BT_RX1 pin of the STM32G070CBT6 main control chip U4, the TX pin of the Bluetooth module U5 is connected to the BT_TX1 pin of the STM32G070CBT6 main control chip U4, the VCC pin of the Bluetooth module U5 is connected to the BT3V3 power supply, and the GND pin of the Bluetooth module U5 is grounded. The 17th pin of the Bluetooth module U5 is connected to one end of the thirty-fifth resistor R35, the other end of the thirty-fifth resistor R35 is connected to the negative electrode of the second light-emitting diode DL2, and the positive electrode of the second light-emitting diode DL2 is connected to the VCC power supply.

[0036] As Figure 7 As shown, the storage circuit includes an HK24C256 storage chip U7, a fortieth resistor R40, a forty-first resistor R41, a twelfth capacitor C12, and a thirteenth capacitor C13. Among them, the A0 pin, A1 pin, A2 pin, GND pin, and WP pin of the HK24C256 storage chip U7 are all grounded. The SDA pin of the HK24C256 storage chip U7 is simultaneously connected to the IIC_SDA pin of the STM32G070CBT6 main control chip U4, one end of the forty-first resistor R41, and one end of the thirteenth capacitor C13. The SCL pin of the HK24C256 storage chip U7 is connected to the IIC_SCL pin of the STM32G070CBT6 main control chip U4, one end of the fortieth resistor R40, and one end of the twelfth capacitor C12. The other end of the twelfth capacitor C12 and the other end of the thirteenth capacitor C13 are grounded. The VCC pin of the HK24C256 storage chip U7, the other end of the fortieth resistor R40, and the other end of the forty-first resistor R41 are simultaneously connected to the VCC power supply.

[0037] As Figure 8As shown in the figure, the peripheral circuit includes a third pin connector CN3, a second triode Q2, a buzzer B1, a thirty-ninth resistor R39, a third light-emitting diode DL3, a forty-second resistor R42, a forty-third resistor R43, an eleventh capacitor C11, a fourth diode D4, and a thirty-eighth resistor R38. Among them, the 1st pin of the third pin connector CN3 is connected to the VCC power supply, the 2nd pin of the third pin connector CN3 is connected to the DEBUG_TX0 pin of the STM32G070CBT6 main control chip U4, the 3rd pin of the third pin connector CN3 is connected to the DEBUG_RX0 pin of the STM32G070CBT6 main control chip U4, and the 4th pin of the third pin connector CN3 is grounded. The base terminal of the second triode Q2 is connected to one end of the forty-second resistor R42, and the other end of the forty-second resistor R42 is simultaneously connected to one end of the forty-third resistor R43 and the BEEP_CTRL pin of the STM32G070CBT6 main control chip U4. The emitter terminal of the second triode Q2 and the other end of the forty-third resistor R43 are both grounded. The collector terminal of the second triode Q2 is simultaneously connected to one end of the eleventh capacitor C11, the positive electrode of the fourth diode D4, and the negative electrode of the buzzer B1. The negative electrode of the fourth diode D4, the positive electrode of the buzzer B1, and one end of the thirty-eighth resistor R38 are connected. The other end of the eleventh capacitor C11 and the other end of the thirty-eighth resistor R38 are connected to the power supply (+12V). The negative electrode of the third light-emitting diode DL3 is connected to the BSP_LED0 pin of the STM32G070CBT6 main control chip U4, the positive electrode of the third light-emitting diode DL3 is connected to one end of the thirty-ninth resistor R39, and the other end of the thirty-ninth resistor R39 is connected to the VCC power supply.

[0038] As Figure 9 shown in the figure, the tensile parameter transmission circuit includes a first operational amplifier U6A, a first capacitor C1, a second diode D2, and third resistors R3 to sixth resistors R6. Among them, the output terminal of the first operational amplifier U6A is simultaneously connected to the inverting input terminal and one end of the fourth resistor R4. The other end of the fourth resistor R4 is connected to the positive electrode of the second diode D2 and the FI pin of the STM32G070CBT6 main control chip U4. The negative electrode of the second diode D2 is connected to the VCC power supply. The non-inverting input terminal of the first operational amplifier U6A is simultaneously connected to one end of the sixth resistor R6, one end of the fifth resistor R5, and one end of the third resistor R3. The other ends of the third resistor R3 and the fifth resistor R5 are simultaneously connected to the FVin pin of the second pin connector CN2 of the interface circuit. The negative power supply pin of the first operational amplifier U6A, the other end of the sixth resistor R6, and one end of the first capacitor C1 are simultaneously grounded. The positive power supply pin of the first operational amplifier U6A and the other end of the first capacitor C1 are simultaneously connected to the power supply (+12V).

[0039] AsFigure 10 As shown, the temperature sampling circuit includes a temperature sensor chip U8 and a twelfth resistor R12. Among them, the 1st pin and the 3rd pin of the temperature sensor chip U8 are grounded. The 2nd pin of the temperature sensor chip U8 is connected to one end of the twelfth resistor R12 and the TI pin of the STM32G070CBT6 main control chip U4 at the same time. The other end of the twelfth resistor R12 is connected to the VCC power supply.

[0040] As Figure 11 shown, the voltage sampling circuit includes a voltage stabilizing diode DV1, a third diode D3, a sixteenth resistor R16, a twenty-second resistor R22, and a sixth capacitor C6. Among them, the negative electrode of the third diode D3 is connected to the VCC power supply. The positive electrode of the third diode D3, one end of the sixth capacitor C6, one end of the sixteenth resistor R16, and one end of the twenty-second resistor R22 are connected to the TI pin of the STM32G070CBT6 main control chip U4 at the same time. The other end of the sixth capacitor C6 and the other end of the twenty-second resistor R22 are grounded. The other end of the sixteenth resistor R16 is connected to the positive electrode of the voltage stabilizing diode DV1. The negative electrode of the voltage stabilizing diode DV1 is connected to the main power supply (+36V).

[0041] As Figure 12 shown, the interface circuit includes a first pin connector CN1, a second pin connector CN2, a first part J1 of the battery B-type interface, and a second part J2 of the battery B-type interface. Among them, the 1st pin of the first pin connector CN1 is connected to the USART4_485A pin of the 485 communication circuit. The 2nd pin of the first pin connector CN1 is connected to the USART4_485B pin of the 485 communication circuit. The 3rd pin of the first pin connector CN1 is connected to the REVERSE_OUT pin of the speed control and steering circuit. The 4th pin of the first pin connector CN1 is connected to the FORWARD_OUT pin of the speed control and steering circuit. The 5th pin of the first pin connector CN1 is connected to the BRAKE_OUT pin of the control circuit. The 6th pin and the 8th pin of the first pin connector CN1 are both grounded. The 7th pin of the first pin connector CN1 is connected to the MOTO_SPEED_OUT pin of the speed control and steering circuit. The 2nd pin, the 4th pin, the 6th pin, and the 7th pin of the second pin connector CN2 are grounded. The 5th pin of the second pin connector CN2 is connected to the power supply (+12V). The first part J1 of the battery B-type interface is grounded. The second part J2 of the battery B-type interface is connected to the main power supply (+36V).

[0042] As Figure 13As shown in the figure, the 485 communication circuit includes a 485 driver chip SP1, a first avalanche breakdown diode TVS1, a second avalanche breakdown diode TVS2, a third triode Q3, a fifteenth resistor R15, a twentieth resistor R20, a twenty-first resistor R21, and twenty-third to twenty-seventh resistors R23 to R27. Among them, the RO pin of the 485 driver chip SP1 is connected to one end of the fifteenth resistor R15 and the USART4_RX pin of the STM32G070CBT6 main control chip U4, and the other end of the fifteenth resistor R15 is connected to the VCC power supply; the / RE pin and the DE pin of the 485 driver chip SP1 are connected to one end of the twenty-third resistor R23 and the collector terminal of the third triode Q3, and the other end of the twenty-third resistor R23 is connected to the VCC power supply; the DI pin of the 485 driver chip SP1 is connected to one end of the twenty-seventh resistor R27, and the other end of the twenty-seventh resistor R27 and the emitter terminal of the third triode Q3 are both grounded, and the base terminal of the third triode Q3 is connected to one end of the twenty-fifth resistor R25, and the other end of the twenty-fifth resistor R25 is connected to the USART4_TX pin of the STM32G070CBT6 main control chip U4; the GND pin of the 485 driver chip SP1 is grounded, and the VC pin of the 485 driver chip SP1 is connected to the VCC power supply; the A pin of the 485 driver chip SP1 is connected to one end of the twenty-sixth resistor R26, the negative electrode of the second avalanche breakdown diode TVS2, and one end of the twenty-fourth resistor R24, the other end of the twenty-sixth resistor R26 is connected to the VCC power supply, the positive electrode of the second avalanche breakdown diode TVS2 is grounded, and the other end of the twenty-fourth resistor R24 is connected to the USART4_485A pin of the first pin connector CN1; the B pin of the 485 driver chip SP1 is connected to one end of the twentieth resistor R20, the negative electrode of the first avalanche breakdown diode TVS1, and one end of the twenty-first resistor R21, the other end of the twentieth resistor R20 is connected in parallel to the positive electrode of the first avalanche breakdown diode TVS1 and grounded, and the other end of the twenty-first resistor R21 is connected to the USART4_485B pin of the first pin connector CN1.

[0043] The working principle and working process of the present utility model are as follows:

[0044] When the electric wire tightener is working, the voltage and ambient temperature of the wire tightener are respectively collected through the voltage sampling circuit and the temperature sampling circuit. The wire tension is transmitted to the main control chip circuit through the tension parameter transmission circuit. The main control chip judges the working state of the motor according to these data, realizes the real-time monitoring of the motor working state, and adjusts the speed and steering of the motor through the speed regulation and steering circuit to tighten or loosen the wire, thereby adjusting the wire tension to keep it within the set range. When it is necessary to quickly adjust the speed of the motor, the user operates the mobile control terminal to send an instruction to the main control chip circuit through the Bluetooth communication circuit. The main control chip quickly adjusts the motor speed through the speed regulation and steering circuit, improving the flexibility and efficiency of the operation. This function provides convenience for remote control and real-time adjustment under complex working conditions.

[0045] When the system detects overload or other abnormal conditions, the main control chip will automatically reduce the power or use the power relay of the control circuit to control the wire tightener to stop running, protecting the wire tightener from damage and enabling the wire tightener to operate efficiently and safely in a complex environment.

[0046] Matters not covered by this utility model are well-known technologies.

Claims

1. A control system for an electric wire tightener, characterized in that, The system includes a voltage sampling circuit, a Bluetooth communication circuit, a main control chip circuit, a 485 communication circuit, a speed regulation and steering circuit, a tension parameter transmission circuit, a control circuit, an interface circuit, and a temperature sampling circuit; the main control chip circuit is respectively connected to the voltage sampling circuit, the Bluetooth communication circuit, the 485 communication circuit, the speed regulation and steering circuit, the tension parameter transmission circuit, and the control circuit, and the interface circuit is respectively connected to the 485 communication circuit, the speed regulation and steering circuit, the tension parameter transmission circuit, and the control circuit; The speed regulation and steering circuit includes a second operational amplifier, a third operational amplifier, a dual NPN transistor, a seventh resistor, an eighth resistor, an eleventh resistor, a thirteenth resistor, a fourteenth resistor, an eighteenth resistor, a nineteenth resistor, a twenty-eighth resistor, a twenty-ninth resistor, a thirtieth resistor, and a thirty-first resistor; wherein, the output terminal of the second operational amplifier is connected to one ends of the seventh resistor and the fourteenth resistor, and the other end of the seventh resistor is connected to the interface circuit; the inverting input terminal of the second operational amplifier is connected to the other end of the fourteenth resistor and one end of the nineteenth resistor, the non-inverting input terminal of the second operational amplifier is connected to one ends of the eighth resistor and the eleventh resistor, the other end of the eighth resistor is connected to the main control chip circuit, the other end of the eleventh resistor is simultaneously connected to one ends of the thirteenth resistor and the eighteenth resistor, the other end of the thirteenth resistor is connected to the main control chip circuit, and the other end of the eighteenth resistor and the other end of the nineteenth resistor are grounded; the non-inverting input terminal of the third operational amplifier is simultaneously connected to one ends of the twenty-eighth resistor and the thirty-first resistor, the other end of the twenty-eighth resistor is connected to the power supply, and the other end of the thirty-first resistor is grounded; the output terminal of the third operational amplifier is simultaneously connected to the inverting input terminal, one ends of the twenty-ninth resistor and the thirtieth resistor, the C1 pin of the dual NPN transistor is simultaneously connected to the other end of the twenty-ninth resistor and the interface circuit, the E2 pin and the E1 pin of the dual NPN transistor are both grounded, the B2 pin of the dual NPN transistor is connected to the main control chip circuit, the C2 pin of the dual NPN transistor and the other end of the thirtieth resistor are simultaneously connected to the interface circuit, and the B1 pin of the dual NPN transistor is connected to the main control chip circuit.

2. The control system of the electric wire tightener according to claim 1, characterized in that The voltage sampling circuit includes a zener diode, a third diode, a sixteenth resistor, a twenty-second resistor, and a sixth capacitor; wherein, the negative electrode of the third diode is connected to the VCC power supply, the positive electrode of the third diode, one end of the sixth capacitor, one end of the sixteenth resistor, and one end of the twenty-second resistor are simultaneously connected to the main control chip circuit, the other end of the sixth capacitor and the other end of the twenty-second resistor are grounded, the other end of the sixteenth resistor is connected to the positive electrode of the zener diode, and the negative electrode of the zener diode is connected to the main power supply.

3. The control system of the electric wire tightener according to claim 1 or 2, characterized in that, The tensile parameter transmission circuit includes a first operational amplifier, a first capacitor, a second diode, and third to sixth resistors. Among them, the output terminal of the first operational amplifier is connected to the inverting input terminal and one end of the fourth resistor at the same time. The other end of the fourth resistor is connected to the positive electrode of the second diode and the main control chip circuit. The negative electrode of the second diode is connected to the VCC power supply. The non-inverting input terminal of the first operational amplifier is connected to one end of the sixth resistor, one end of the fifth resistor, and one end of the third resistor at the same time. The other ends of the third resistor and the fifth resistor are connected to the interface circuit at the same time. The negative power supply pin of the first operational amplifier, the other end of the sixth resistor, and one end of the first capacitor are grounded at the same time. The positive power supply pin of the first operational amplifier and the other end of the first capacitor are connected to the power supply.

4. The control system of the electric wire tightener according to claim 3, characterized in that, The control circuit includes an HF46F / 12-HS1 power relay, a first resistor, a second resistor, a first diode, and a first triode. Among them, the 1st pin of the HF46F / 12-HS1 power relay is connected to the power supply through the negative electrode of the first diode. The 2nd pin of the HF46F / 12-HS1 power relay is connected to the collector terminal of the first triode. The base terminal of the first triode is connected to one end of the first resistor and one end of the second resistor. The positive electrode of the first diode, the emitter terminal of the first triode, and the other end of the second resistor are all grounded. The other end of the first resistor is connected to the main control chip circuit. The 3rd pin of the HF46F / 12-HS1 power relay is connected to the main power supply, and the 4th pin is connected to the interface circuit.

5. The control system of the electric wire tightener according to claim 1, characterized in that, The system further includes a peripheral circuit for prompting whether the control system is normal. The peripheral circuit includes a third pin connector, a second triode, a buzzer, a thirty-ninth resistor, a third light-emitting diode, a forty-second resistor, a forty-third resistor, an eleventh capacitor, a fourth diode, and a thirty-eighth resistor. Among them, the 1st pin of the third pin connector is connected to the VCC power supply. The 2nd pin of the third pin connector is connected to the main control chip circuit. The 3rd pin of the third pin connector is connected to the main control chip circuit. The 4th pin of the third pin connector is grounded. The base terminal of the second triode is connected to one end of the forty-second resistor. The other end of the forty-second resistor is connected to one end of the forty-third resistor and the main control chip circuit at the same time. The emitter terminal of the second triode and the other end of the forty-third resistor are both grounded. The collector terminal of the second triode is connected to one end of the eleventh capacitor, the positive electrode of the fourth diode, and the negative electrode of the buzzer at the same time. The negative electrode of the fourth diode, the positive electrode of the buzzer, and one end of the thirty-eighth resistor are connected. The other end of the eleventh capacitor and the other end of the thirty-eighth resistor are connected to the power supply. The negative electrode of the third light-emitting diode is connected to the main control chip circuit. The positive electrode of the third light-emitting diode is connected to one end of the thirty-ninth resistor. The other end of the thirty-ninth resistor is connected to the VCC power supply.

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