An intelligent control and management service system for power equipment

Abstract

The present invention discloses an intelligent control and management service system for electric power equipment, comprising a central control console, a network transmission module, an online monitoring device and various electric power control devices. The central control console is wirelessly connected to the online monitoring device, and the central control console is connected to various electric power control devices through the network transmission module. Both the electric power control device and the network transmission module include a communication module. In the intelligent control and management service system for electric power equipment, staff can monitor and manage various electric power equipment online through the central control console, and staff can also monitor electric power equipment online on site through the online monitoring device, thus realizing a combination of remote and on-site methods, and improving the flexibility of electric power equipment management services. The surge protection unit in the electric power control device and the network transmission module can discharge quickly when a surge occurs in the communication line, and can also keep the communication voltage stable, thus improving the stability of the entire electric power equipment management service system.

Description

Technical Field

[0001] The present invention relates to the field of power equipment management systems, and in particular to an intelligent control and management service system for power equipment. Background Art

[0002] In the existing power equipment management system, the power data of the power equipment under its jurisdiction is first monitored through each power equipment control device, and then controlled according to the situation. At the same time, each power equipment control device transmits the data to the central control room, which performs remote monitoring and control to realize the management of the power equipment.

[0003] According to the patent number: CN104571038A, the patent name: Intelligent control and management service system for electric power equipment, hereinafter collectively referred to as the reference patent, the reference patent records "one or more device slaves, one end of the device slave is connected to the controlled device, and the other end is connected to the inspection data bus, and the inspection data bus is connected to the control host". From this, the staff in this field can know that the power equipment management system adopts the connection method of the switchboard and the extension, collects data through data inspection, and then controls it.

[0004] However, in the actual operation process, if one of the extensions fails, the staff needs to conduct on-site inspection. Due to the long distance, communication between the on-site staff and the central control staff is difficult, which affects the progress of maintenance. Moreover, the communication connection method has the problem of isolation between the primary and secondary sides. If an extension has an overvoltage condition, it can easily affect the communication of other extensions, which will cause greater management obstacles to the entire management system. Summary of the invention

[0005] In order to overcome the above-mentioned deficiencies, the present invention provides an intelligent control and management service system for electric power equipment.

[0006] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0007] An intelligent control and management service system for electric power equipment includes a central control console, a network transmission module, an online monitoring device and various electric power control devices, wherein the central control console is wirelessly connected to the online monitoring device, and the central control console is connected to various electric power control devices via the network transmission module;

[0008] The power control device and the network transmission module both include a communication module, the communication module includes a communication circuit, the communication circuit includes a communication unit and a surge protection unit, the communication unit includes an integrated circuit, the model of the integrated circuit is MAX1308, the surge protection unit includes a tenth resistor, an eleventh resistor, a twelfth resistor, a third capacitor, a fuse, a gas discharge tube, a first bidirectional diode, a second bidirectional diode, a first diode, a second diode, a third diode, a fourth diode, a fifth diode and a sixth diode, the eighth end of the integrated circuit is externally connected to a DC voltage power supply CVCC, the seventh end of the integrated circuit is grounded through the tenth resistor, and the seventh end of the integrated circuit is connected to the sixth end of the integrated circuit through an anti-series circuit composed of the first diode and the second diode, and the seventh end of the integrated circuit is connected to the sixth end of the integrated circuit through the third diode and the fourth diode The anti-series circuit composed of a tube is connected to the sixth end of the integrated circuit, one end of the first bidirectional diode is connected to the first diode and the second diode respectively, the other end of the first bidirectional diode is connected to the third diode and the fourth diode respectively, the anode of the fifth diode is connected to the cathode of the first diode, the cathode of the fifth diode is grounded, the anode of the sixth diode is connected to the cathode of the third diode, the cathode of the sixth diode is grounded, the fifth end of the integrated circuit is externally connected to the DC voltage power supply CVCC through the eleventh resistor, the fifth end of the integrated circuit is connected to the analog ground through a parallel circuit composed of the twelfth resistor and the third capacitor, the seventh end of the integrated circuit is connected to the sixth end of the integrated circuit through the second bidirectional diode, the seventh end of the integrated circuit is connected to the sixth end of the integrated circuit through the fuse and the gas discharge tube, and the grounding end of the gas discharge tube is connected to the analog ground.

[0009] Preferably, the power control equipment includes a central processing module, a data acquisition module, a data transmission module and a Bluetooth connection module. The central processing module is electrically connected to the data acquisition module. The data acquisition module transmits the collected data signal to the central processing module. The central processing module is connected to the central control console through the data transmission module and the network transmission module. The central processing module transmits the received data signal to the central control console through the data transmission module and the network transmission module, thereby realizing real-time monitoring of the working status of the power equipment by the central control console. The central processing module is wirelessly connected to the online monitoring device through the Bluetooth connection module. When the staff is equipped with the online monitoring device, the online monitoring device directly transmits data with the nearest central processing module through the Bluetooth connection module, and can receive the data of the power equipment in the fastest and most direct way, thereby improving the work efficiency of the staff.

[0010] Preferably, the data acquisition module is electrically connected to a current sensor, a voltage sensor and a temperature sensor, the current sensor is used to detect the working current of the power equipment, the voltage sensor is used to detect the working voltage of the power equipment, and the temperature sensor is used to perform online detection of the working temperature of the power equipment.

[0011] Preferably, the first diode, the second diode, the third diode, the fourth diode, the fifth diode and the sixth diode are all fast recovery diodes. Since the surge in the communication line occurs for a short time, in order to ensure the normal operation of the communication, the use of fast recovery diodes can quickly ensure communication after the surge is relieved.

[0012] Preferably, the communication unit further comprises a first optocoupler, a second optocoupler, a third optocoupler, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a first transistor, a second transistor, a first capacitor and a second capacitor; the first end of the integrated circuit is connected to the second end of the first optocoupler, the first end of the first optocoupler is externally connected to a DC voltage power supply CVCC through a fourth resistor, the third end of the first optocoupler is externally connected to a DC voltage power supply DVCC, the second end of the first optocoupler is grounded through the third resistor, the second end of the first optocoupler is connected to the base of the first transistor through a parallel circuit consisting of the first capacitor and the second resistor, the emitter of the first transistor is grounded, the collector of the first transistor is externally connected to the DC voltage power supply DVCC through the first resistor, the second end of the integrated circuit and the third end of the integrated circuit are both connected to the fourth end of the second optocoupler, the fourth end of the second optocoupler is grounded through an eleventh resistor, the second end of the second optocoupler is connected to the fifth resistor, and the The first end of the second optocoupler is externally connected to the DC voltage power supply DVCC, the first end of the third optocoupler is externally connected to the DC voltage power supply DVCC through the sixth resistor, the third end of the third optocoupler is externally connected to the DC voltage power supply CVCC, the fourth end of the third optocoupler is grounded through the seventh resistor, the fourth end of the third optocoupler is connected to the base of the second transistor through a parallel circuit composed of the second capacitor and the eighth resistor, the emitter of the second transistor is grounded, the collector of the second transistor is externally connected to the DC voltage power supply DVCC through the ninth resistor, and the collector of the second transistor is connected to the fourth end of the integrated circuit. The communication circuit adopts the RS486 communication protocol, in which the three-terminal signals of 485RX, 485TX and 485RE / DE are respectively isolated from the primary side and the secondary side through the first optocoupler, the third optocoupler and the second optocoupler, which protects the internal circuit of the power control device, and the first transistor and the second transistor amplify the signal to prevent the signal distortion caused by the front-end surge protection.

[0013] Preferably, the models of the first optocoupler, the second optocoupler and the third optocoupler are LTV816S, and the first transistor and the second transistor are both NPN transistors.

[0014] The beneficial effects of the present invention are as follows: In the intelligent control and management service system for electric power equipment:

[0015] 1. The staff can monitor and manage the power equipment controlled by each power control device online through the central control console. At the same time, the staff can also monitor each power equipment online on site through the online monitoring equipment, realizing the combination of remote and on-site methods, and improving the flexibility and reliability of power equipment management services;

[0016] 2. The surge protection unit in the power control equipment and network transmission module can not only discharge quickly when a surge occurs in the communication line, but also maintain the stability of the communication voltage, thereby improving the stability of the entire power equipment management service system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will now be described by way of example with reference to the accompanying drawings, in which:

[0018] Figure 1 It is a system principle diagram of the present invention;

[0019] Figure 2 It is a circuit principle diagram of the communication circuit of the present invention. DETAILED DESCRIPTION

[0020] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0021] like Figure 1 and Figure 2 As shown, an intelligent control and management service system for electric power equipment includes a central control console, a network transmission module, an online monitoring device and various electric power control devices. The central control console is wirelessly connected to the online monitoring device, and the central control console is connected to various electric power control devices through the network transmission module. The staff can monitor and manage the electric power equipment controlled by each electric power control device online through the central control console. At the same time, the staff can also monitor each electric power equipment online on site through the online monitoring device, realizing a combination of remote and on-site methods, and improving the flexibility and reliability of electric power equipment management services.

[0022] The power control device and the network transmission module both include a communication module, the communication module includes a communication circuit, the communication circuit includes a communication unit and a surge protection unit, the communication unit includes an integrated circuit U4, the model of the integrated circuit U4 is MAX1308, the surge protection unit includes a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a third capacitor C3, a fuse F1, a gas discharge tube P1, a first bidirectional diode TVS1, a second bidirectional diode TVS2, a first diode D1, a second diode D2, a third diode D3, a fourth diode D4, a fifth diode D5 and a sixth diode D6, the eighth terminal of the integrated circuit U4 is externally connected to a DC voltage power supply CVCC, and the integrated circuit The seventh end of the integrated circuit U4 is connected to the ground through the tenth resistor R10, and the seventh end of the integrated circuit U4 is connected to the sixth end of the integrated circuit U4 through the anti-series circuit composed of the first diode D1 and the second diode D2, the seventh end of the integrated circuit U4 is connected to the sixth end of the integrated circuit U4 through the anti-series circuit composed of the third diode D3 and the fourth diode D4, one end of the first bidirectional diode TVS1 is connected to the first diode D1 and the second diode D2 respectively, the other end of the first bidirectional diode TVS1 is connected to the third diode D3 and the fourth diode D4 respectively, the anode of the fifth diode D5 is connected to the cathode of the first diode D1, the cathode of the fifth diode D5 is grounded, and the anode of the sixth diode D6 is connected to the cathode of the first diode D1. The cathodes of the three diodes D3 are connected, the cathode of the sixth diode D6 is grounded, the fifth terminal of the integrated circuit U4 is externally connected to the DC voltage power supply CVCC through the eleventh resistor R11, the fifth terminal of the integrated circuit U4 is connected to the analog ground through the parallel circuit composed of the twelfth resistor R12 and the third capacitor C3, the seventh terminal of the integrated circuit U4 is connected to the sixth terminal of the integrated circuit U4 through the second bidirectional diode TVS2, the seventh terminal of the integrated circuit U4 is connected to the sixth terminal of the integrated circuit U4 through the fuse F1 and the gas discharge tube P1, the grounding terminal of the gas discharge tube P1 is connected to the analog ground, in the surge protection unit, when a surge occurs, it is first discharged through the gas discharge tube P1, due to the response time of the gas discharge tube P1 The fastest and the discharge amount is large, so the gas discharge tube P1 is placed in the first stage, and then the voltage is limited by the second bidirectional diode TVS2. At the same time, the current in the surge passes through the fuse F1 for the first level protection, and then enters the bridge current limiting voltage circuit composed of the first bidirectional diode TVS1, the first diode D1, the second diode D2, the third diode D3, and the fourth diode D4. The excess current is discharged to the ground through the fifth diode D5 and the sixth diode D6. At the same time, the bridge circuit composed of the first diode D1, the second diode D2, the third diode D3, and the fourth diode D4 can ensure that the communication signal is stable at a reliable voltage value, reducing the instability of the communication voltage caused by the surge.

[0023] As an embodiment, the power control device includes a central processing module, a data acquisition module, a data transmission module and a Bluetooth connection module. The central processing module is electrically connected to the data acquisition module. The data acquisition module transmits the collected data signal to the central processing module. The central processing module is connected to the central control console through the data transmission module and the network transmission module. The central processing module transmits the received data signal to the central control console through the data transmission module and the network transmission module, thereby realizing real-time monitoring of the working status of the power equipment by the central control console. The central processing module is wirelessly connected to the online monitoring device through the Bluetooth connection module. When the staff is equipped with the online monitoring device, the online monitoring device directly transmits data with the nearest central processing module through the Bluetooth connection module, and can receive the data of the power equipment in the fastest and most direct way, thereby improving the work efficiency of the staff.

[0024] As an embodiment, the data acquisition module is electrically connected to a current sensor, a voltage sensor and a temperature sensor. The current sensor is used to detect the working current of the power equipment, the voltage sensor is used to detect the working voltage of the power equipment, and the temperature sensor is used to perform online detection of the working temperature of the power equipment.

[0025] As an embodiment, the first diode D1, the second diode D2, the third diode D3, the fourth diode D4, the fifth diode D5 and the sixth diode D6 are all fast recovery diodes. Since the surge in the communication line occurs for a short time, in order to ensure the normal operation of the communication, the use of fast recovery diodes can quickly ensure communication after the surge is relieved.

[0026] As an embodiment, the communication unit further includes a first optical coupler U1, a second optical coupler U2, a third optical coupler U3, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a first transistor Q1, a second transistor Q2, a first capacitor C1 and a second capacitor C2, a first end of the integrated circuit U4 is connected to the second end of the first optical coupler U1, a first end of the first optical coupler U1 is externally connected to a DC voltage power supply CVCC through a fourth resistor R4, and a first end of the first optical coupler U1 is connected to a DC voltage power supply CVCC through a fourth resistor R4. The third end is externally connected to a DC voltage power supply DVCC, the second end of the first optical coupler U1 is grounded through a third resistor R3, the second end of the first optical coupler U1 is connected to the base of the first transistor Q1 through a parallel circuit consisting of a first capacitor C1 and a second resistor R2, the emitter of the first transistor Q1 is grounded, and the collector of the first transistor Q1 is externally connected to the DC voltage power supply DVCC through the first resistor R1, the second end of the integrated circuit U4 and the third end of the integrated circuit U4 are both connected to the fourth end of the second optical coupler U2, the fourth end of the second optical coupler U2 is grounded through an eleventh resistor R11, and the second optical coupler U2 is connected to the ground through a first capacitor C1 and a second resistor R2. The second end of the optical coupler U2 is connected to the fifth resistor R5, the first end of the second optical coupler U2 is externally connected to the DC voltage power supply DVCC, the first end of the third optical coupler U3 is externally connected to the DC voltage power supply DVCC through the sixth resistor R6, the third end of the third optical coupler U3 is externally connected to the DC voltage power supply CVCC, the fourth end of the third optical coupler U3 is grounded through the seventh resistor R7, the fourth end of the third optical coupler U3 is connected to the base of the second triode Q2 through the parallel circuit composed of the second capacitor C2 and the eighth resistor R8, the emitter of the second triode Q2 is grounded, and the collector of the second triode Q2 is connected to the ninth resistor R8. Resistor R9 is connected to an external DC voltage power supply DVCC, and the collector of the second transistor Q2 is connected to the fourth terminal of the integrated circuit U4. The communication circuit adopts the RS486 communication protocol, wherein the three-terminal signals of 485RX, 485TX and 485RE / DE are respectively isolated on the primary side and the secondary side through the first optical coupler U1, the third optical coupler U3 and the second optical coupler U2, thereby protecting the internal circuit of the power control device, and the first transistor Q1 and the second transistor Q2 amplify the signal, thereby preventing the signal distortion caused by the front-end surge protection.

[0027] As an embodiment, the models of the first optocoupler U1 , the second optocoupler U2 and the third optocoupler U3 are LTV816S, and the first transistor Q1 and the second transistor Q2 are both NPN transistors.

[0028] The above is based on the present invention as an inspiration. Through the above description, relevant staff can make various changes and modifications without departing from the technical idea of ​​this invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An intelligent control and management service system for electric power equipment, characterized in that: It includes a central control console, a network transmission module, an online monitoring device and various power control devices. The central control console is wirelessly connected to the online monitoring device, and the central control console is connected to various power control devices through the network transmission module; The power control device and the network transmission module both include a communication module, the communication module includes a communication circuit, the communication circuit includes a communication unit and a surge protection unit, the communication unit includes an integrated circuit, the model of the integrated circuit is MAX1308, the surge protection unit includes a tenth resistor, an eleventh resistor, a twelfth resistor, a third capacitor, a fuse, a gas discharge tube, a first bidirectional diode, a second bidirectional diode, a first diode, a second diode, a third diode, a fourth diode, a fifth diode and a sixth diode, the eighth end of the integrated circuit is externally connected to a DC voltage power supply CVCC, the seventh end of the integrated circuit is grounded through the tenth resistor, and the seventh end of the integrated circuit is connected to the sixth end of the integrated circuit through an anti-series circuit composed of the first diode and the second diode, and the seventh end of the integrated circuit is connected to the sixth end of the integrated circuit through the third diode and the fourth diode a reverse series circuit composed of a first bidirectional diode and a second bidirectional diode connected to the sixth end of the integrated circuit, one end of the first bidirectional diode is connected to the first diode and the second diode respectively, the other end of the first bidirectional diode is connected to the third diode and the fourth diode respectively, the anode of the fifth diode is connected to the cathode of the first diode, the cathode of the fifth diode is grounded, the anode of the sixth diode is connected to the cathode of the third diode, the cathode of the sixth diode is grounded, the fifth end of the integrated circuit is externally connected to the DC voltage power supply CVCC through the eleventh resistor, the fifth end of the integrated circuit is connected to the analog ground through the parallel circuit composed of the twelfth resistor and the third capacitor, the seventh end of the integrated circuit is connected to the sixth end of the integrated circuit through the second bidirectional diode, the seventh end of the integrated circuit is connected to the sixth end of the integrated circuit through the fuse and the gas discharge tube, and the grounding terminal of the gas discharge tube is connected to the analog ground; The power control device includes a central processing module, a data acquisition module, a data transmission module and a Bluetooth connection module. The central processing module is electrically connected to the data acquisition module, the central processing module is connected to the central control console through the data transmission module and the network transmission module, and the central processing module is wirelessly connected to the online monitoring device through the Bluetooth connection module.

2. The intelligent control and management service system for electric power equipment according to claim 1 is characterized in that: The data acquisition module is electrically connected to a current sensor, a voltage sensor and a temperature sensor.

3. The intelligent control and management service system for electric power equipment according to claim 1 is characterized in that: The first diode, the second diode, the third diode, the fourth diode, the fifth diode and the sixth diode are all fast recovery diodes.

4. The intelligent control and management service system for electric power equipment according to claim 1 is characterized in that: The communication unit also includes a first optical coupler, a second optical coupler, a third optical coupler, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a first transistor, a second transistor, a first capacitor and a second capacitor. The first end of the integrated circuit is connected to the second end of the first optical coupler, the first end of the first optical coupler is externally connected to a DC voltage power supply CVCC through the fourth resistor, the third end of the first optical coupler is externally connected to a DC voltage power supply DVCC, the second end of the first optical coupler is grounded through the third resistor, the second end of the first optical coupler is connected to the base of the first transistor through a parallel circuit consisting of the first capacitor and the second resistor, the emitter of the first transistor is grounded, and the collector of the first transistor is externally connected to the DC voltage power supply DVCC through the first resistor. CC, the second end of the integrated circuit and the third end of the integrated circuit are both connected to the fourth end of the second optocoupler, the fourth end of the second optocoupler is grounded through the eleventh resistor, the second end of the second optocoupler is connected to the fifth resistor, the first end of the second optocoupler is externally connected to the DC voltage power supply DVCC, the first end of the third optocoupler is externally connected to the DC voltage power supply DVCC through the sixth resistor, the third end of the third optocoupler is externally connected to the DC voltage power supply CVCC, the fourth end of the third optocoupler is grounded through the seventh resistor, the fourth end of the third optocoupler is connected to the base of the second transistor through a parallel circuit composed of the second capacitor and the eighth resistor, the emitter of the second transistor is grounded, the collector of the second transistor is externally connected to the DC voltage power supply DVCC through the ninth resistor, and the collector of the second transistor is connected to the fourth end of the integrated circuit.

5. The intelligent control and management service system for electric power equipment according to claim 4 is characterized in that: The models of the first optocoupler, the second optocoupler and the third optocoupler are LTV816S, and the first transistor and the second transistor are both NPN transistors.

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