Remote monitoring control system and method for direct-current power supply

Abstract

The invention is suitable for the technical field of centralized remote monitoring / control of the Internet of Things, and provides a remote monitoring and control system and method for a direct-current power supply. The one or more phase switching units take power from any phase of external three-phase alternating current to provide power supply for the step-down rectification unit, and are seamlessly switched to the other phase of power when any phase of power of the three-phase alternating current lacks phase; the step-down rectification unit outputs a plurality of direct currents with different voltages in a stable voltage mode to drive one or more direct current loads; one or more monitoring units for monitoring the power supply voltage and the power supply current of the DC load; the switch unit is used for controlling any one step-down rectification unit to be started or closed; one or more reverse connection protection units used for preventing reverse connection of the DC load; therefore, reverse connection protection, power-on / power-off control and power supply voltage and power supply current monitoring / control are carried out on the direct current load, the integration level is high, the intelligent degree is high, and the user experience is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of Internet of Things centralized remote monitoring / control, and particularly relates to a DC power remote monitoring control system and method. BACKGROUND

[0002] There are many small devices in the existing Internet of Things control cabinet, resulting in the existence of many AC adapters, complicated wiring, and the state of each small power sensor and monitoring communication device cannot be monitored and controlled by the traditional AC adapter, which cannot meet the use requirements of people. SUMMARY

[0003] In view of the above problems of the prior art, the purpose of the present application is to provide a DC power remote monitoring control system and method, which aims to solve the problems of complicated wiring, low product integration, low product intelligence, limited use scene and poor user experience caused by the fact that the prior art cannot provide an effective DC power remote monitoring control system.

[0004] In one aspect, the present application provides a DC power remote monitoring control system, which comprises:

[0005] a plurality of DC power supplies with different voltages drive one or more DC loads;

[0006] monitoring the supply voltage and supply current of the DC load;

[0007] turning on or off the power supply of any DC load;

[0008] sending an alarm when the supply voltage and supply current of the DC load are abnormal;

[0009] In another aspect, the present application provides a DC power remote monitoring control method, which comprises the following steps:

[0010] The system of the present application, wherein the system further comprises:

[0011] presetting the supply voltage and supply current of the DC load;

[0012] a power adjustment unit controls the supply voltage and supply current of any DC load by the preset supply voltage and supply current of the DC load.

[0013] The system of the present application, wherein the system further comprises:

[0014] a digital signal input / output unit inputs and outputs digital signals;

[0015] Analog signal input and output unit, input and output analog signal;

[0016] Relay switch unit, control the on-off of external electric signal;

[0017] MOS tube switch unit, control the on-off of the electric signal;

[0018] The digital signal input and output unit, the analog signal input and output unit and the relay switch unit and the MOS tube switch unit are connected with the master control unit and controlled by the master control unit.

[0019] The system of the application, wherein the system further comprises:

[0020] Input phase sequence identification unit, identify whether the phase sequence of the three-phase alternating current is positive phase sequence or reverse sequence;

[0021] Output phase sequence identification unit, identify the phase sequence of the phase electricity output by the phase switching unit;

[0022] Load balancing unit, detect the voltage of any one phase of the three-phase alternating current to the zero line, control the phase switching unit to take power from the phase electricity with the highest voltage of any one phase of the three-phase alternating current to the zero line to provide power supply for the voltage reduction rectifier unit;

[0023] The input phase sequence identification unit, the output phase sequence identification unit and the load balancing unit are connected with the three-phase alternating current, and the input phase sequence identification unit, the output phase sequence identification unit and the load balancing unit are connected with the master control unit; the master control unit obtains the phase sequence of the three-phase alternating current, the phase sequence of the phase electricity output by the phase switching unit and the voltage of any one phase of the three-phase alternating current to the zero line; the load balancing unit is also connected with the phase switching unit, and the output phase sequence identification unit is connected with the phase switching switch.

[0024] The system of the application, wherein the system further comprises:

[0025] Temperature and humidity detection unit, detect the temperature and humidity of the current environment;

[0026] Temperature and humidity detection input unit, connect external temperature and humidity sensor;

[0027] Communication input unit, connect external WIFI, Bluetooth, RS232, RS485 and CAN and Ethernet communication equipment;

[0028] GPRS communication unit, wireless communication connection with the Internet through the base station;

[0029] Ethernet communication unit, wired communication connection with the Internet;

[0030] The temperature and humidity detection unit and the temperature and humidity detection input unit are connected with the main control unit, the GPRS communication unit and the Ethernet communication unit are connected with the communication input unit, and the GPRS communication unit and the Ethernet communication unit are connected with the main control unit.

[0031] The GPRS communication unit and the Ethernet communication unit are used for protocol transparent transmission.

[0032] The system of the application, wherein the system further comprises:

[0033] The carrier communication unit is connected with the communication input unit, the main control unit and the three-phase alternating current through the three-phase alternating current line.

[0034] The carrier communication unit is connected with the communication input unit, the main control unit and the three-phase alternating current through the three-phase alternating current line.

[0035] The system of the application, wherein the system further comprises:

[0036] The communication gateway is connected with the main control unit, the GPRS communication unit, the Ethernet communication unit and the communication input unit.

[0037] The communication gateway is connected with the main control unit, the GPRS communication unit, the Ethernet communication unit and the communication input unit.

[0038] The system of the application, wherein the system further comprises:

[0039] The power supply unit is connected with each unit of the system.

[0040] The power supply unit is connected with each unit of the system.

[0041] The power supply switching unit is connected with the three-phase alternating current and the power supply unit.

[0042] The power supply switching unit is connected with the three-phase alternating current and the power supply unit.

[0043] The system of the application, wherein the system further comprises:

[0044] The alarm unit is connected with the system.

[0045] The alarm reminding sending includes sending alarm reminding to a server or a mobile terminal on the Internet and sending sound and light alarm reminding;

[0046] The alarm unit is connected with the communication gateway and the monitoring unit respectively.

[0047] The man-machine interaction unit is connected with each unit of the system.

[0048] The man-machine interaction unit is connected with each unit of the system.

[0049] The beneficial effects of the present application are that one or more phase switching units take power from any one phase of external three-phase alternating current to provide power supply for the voltage reduction rectification unit, and seamlessly switch to another phase when any one phase of the three-phase alternating current is missing; the voltage reduction rectification unit stably outputs direct current of multiple different voltages to drive one or more direct current loads; one or more monitoring units monitor the power supply voltage and power supply current of the direct current load; the switching unit controls the start or shutdown of any voltage reduction rectification unit; one or more reverse connection protection units prevent the direct current load from being connected in reverse; thereby realizing reverse connection protection, on / off control and power supply voltage and power supply current monitoring / control of the direct current load, having high integration and high intelligence, and improving user experience. BRIEF DESCRIPTION OF DRAWINGS

[0050] Figure 1 is a structure schematic diagram of the direct current power supply remote monitoring control system provided by the embodiment two of the present application;

[0051] Figure 2 is a structure schematic diagram of the direct current power supply remote monitoring control system provided by the embodiment two of the present application;

[0052] Figure 3 is a structure schematic diagram of the direct current power supply remote monitoring control system provided by the embodiment two of the present application;

[0053] Figure 4 is a structure schematic diagram of the direct current power supply remote monitoring control system provided by the embodiment two of the present application;

[0054] Figure 5 is an implementation flowchart of the direct current power supply remote monitoring control method provided by the embodiment one of the present application. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0056] The specific implementation of the present application is described in detail below in combination with specific embodiments:

[0057] Example One

[0058] Figure 5 The implementation process of the DC power remote monitoring control method provided by the embodiment one of the application is shown, only the parts related to the embodiment of the application are shown for the convenience of description, and the details are described as follows:

[0059] In step S101, the DC power of multiple different voltages is output to drive one or more DC loads 200;

[0060] In step S102, the supply voltage and supply current of the DC load 200 are monitored;

[0061] In step S103, the supply of any DC load 200 is turned on or off;

[0062] In step S104, an alarm is sent when the supply voltage and supply current of the DC load 200 are abnormal.

[0063] Example Two

[0064] Figures 1 to 4 The structure of the DC power remote monitoring control system provided by the embodiment two of the application is shown, only the parts related to the embodiment of the application are shown for the convenience of description, and the details are described as follows:

[0065] One or more phase switching units 110 take power from any one phase of external three-phase AC power to provide power supply for the voltage reduction rectifier unit 120, and seamlessly switch to another phase when any one phase of the three-phase AC power is missing; supply redundancy is performed;

[0066] The voltage reduction rectifier unit 120 stably outputs DC power of multiple different voltages to drive one or more DC loads 200;

[0067] One or more monitoring units 130 monitor the supply voltage and supply current of the DC load 200;

[0068] The switching unit 140 controls the start or stop of any voltage reduction rectifier unit 120;

[0069] One or more reverse connection protection units 150 prevent the DC load 200 from being connected reversely;

[0070] The phase switching unit 110 is connected with the three-phase AC power, the voltage reduction rectifier unit 120 is connected with the phase switching unit 110, the switching unit 140 is connected with the voltage reduction rectifier unit 120, the reverse connection protection unit 150 is connected with the switching unit 140, and the DC load 200 is connected with the reverse connection protection unit 150;

[0071] The monitoring unit 130 is connected with the step-down rectifier unit 120 or the direct current load 200, and the power adjustment unit 160 is connected with the step-down rectifier unit 120.

[0072] The one or more phase switching units 110 take power from any one phase of external three-phase alternating current to provide power supply for the step-down rectifier unit 120, and seamlessly switch to another phase when any one phase of the three-phase alternating current is missing; the step-down rectifier unit 120 stably outputs direct current of multiple different voltages to drive one or more direct current loads 200; the one or more monitoring units 130 monitor the power supply voltage and power supply current of the direct current load 200; the switching unit 140 controls the start or shutdown of any step-down rectifier unit 120; and the one or more reverse connection protection units 150 prevent the direct current load 200 from being connected reversely; thereby realizing reverse connection protection, on / off control, and power supply voltage and power supply current monitoring / control of the direct current load 200, having high integration and high intelligence, and improving user experience.

[0073] As shown in Figure 1 , the system 100 further comprises:

[0074] The power supply voltage and power supply current of the preset direct current load 200 are preset;

[0075] The power adjustment unit 160 controls the step-down rectifier unit 120 to adjust the power supply voltage and power supply current of any direct current load 200 according to the preset power supply voltage and power supply current of the direct current load 200.

[0076] As shown in Figure 1 and Figure 2 , the system 100 further comprises:

[0077] The digital signal input / output unit 170 inputs and outputs digital signals;

[0078] The analog signal input / output unit 180 inputs and outputs analog signals;

[0079] The relay switching unit 190 controls the on / off of external electrical signals;

[0080] The MOS tube switching unit 200 controls the on / off of electrical signals;

[0081] The digital signal input / output unit 170, the analog signal input / output unit 180, the relay switching unit 190, and the MOS tube switching unit 200 are connected with the main control unit 240 and controlled by the main control unit 240; analog quantity / switching quantity input / output detection / control and switching quantity output control are realized.

[0082] As shown in Figure 1 and Figure 2 , the system 100 further comprises:

[0083] The input phase sequence recognition unit 210 recognizes whether the phase sequence of the three-phase alternating current is a positive phase sequence or a reverse phase sequence;

[0084] The output phase sequence recognition unit 220 recognizes the phase sequence of the phase voltage output by the phase switching unit 110;

[0085] The load balancing unit 230 detects the voltage of any one phase of the three-phase alternating current to the zero line, and controls the phase switching unit 110 to take power from the phase with the highest voltage of any one phase of the three-phase alternating current to the zero line to provide power supply for the step-down rectifier unit 120;

[0086] The input phase sequence recognition unit 210, the output phase sequence recognition unit 220, and the load balancing unit 230 are all connected to the three-phase alternating current, and the input phase sequence recognition unit 210, the output phase sequence recognition unit 220, and the load balancing unit 230 are all connected to the main control unit 240. The main control unit 240 obtains the phase sequence of the three-phase alternating current, the phase sequence of the phase voltage output by the phase switching unit 110, and the voltage of any one phase of the three-phase alternating current to the zero line. The load balancing unit 230 is also connected to the phase switching unit 110, and the output phase sequence recognition unit 220 is connected to the phase switching switch. The intelligent degree is improved.

[0087] As shown in Figures 1 to 3 , the system 100 further comprises:

[0088] The temperature and humidity detection unit 250 detects the temperature and humidity of the current environment;

[0089] The temperature and humidity detection input unit 260 is connected to an external temperature and humidity sensor;

[0090] The communication input unit 270 is connected to external WIFI, Bluetooth, RS232, RS485, CAN, and Ethernet communication devices;

[0091] The GPRS communication unit 280 is wirelessly connected to the Internet through a base station;

[0092] The Ethernet communication unit 290 is connected to the Internet by wire;

[0093] The temperature and humidity detection unit 250 and the temperature and humidity detection input unit 260 are both connected to the main control unit 240. The GPRS communication unit 280 and the Ethernet communication unit 290 are both connected to the communication input unit 270. The GPRS communication unit 280 and the Ethernet communication unit 290 are both connected to the main control unit 240 to control the GPRS communication unit 280 and the Ethernet communication unit 290, such as restarting, obtaining the working state, upgrading, etc.

[0094] The GPRS communication unit 280 and the Ethernet communication unit 290 are used for protocol transparent transmission; the implementation improves the intelligent degree and meets different use requirements.

[0095] As shown in Figure 3 , the system 100 further comprises:

[0096] The carrier communication unit 300 performs wired communication with external communication equipment through three-phase alternating current lines;

[0097] The carrier communication unit 300 is connected with the communication input unit 270 and the main control unit 240 respectively and is connected with three-phase alternating current; it meets the use requirements of different scenes.

[0098] As shown in Figure 3 , the system 100 further comprises:

[0099] The communication gateway 310 converts the communication protocols between the GPRS communication unit 280 and the Ethernet communication unit 290 and the communication input unit 270 and converts the communication protocols between the GPRS communication unit 280 and the Ethernet communication unit 290 and the main control unit 240, which meets different use requirements;

[0100] The communication gateway 310 is connected with the main control unit 240, the GPRS communication unit 280 and the Ethernet communication unit 290 and the communication input unit 270 respectively.

[0101] As shown in Figure 4 , the system 100 further comprises:

[0102] The power supply unit 320 provides power supply for the system 100 after step-down rectification of one phase or two phases of three-phase alternating current;

[0103] The power supply unit 320 is connected with each unit of the system 100;

[0104] The power supply switching unit 330 provides one phase or two phases for the power supply unit 320 and seamlessly switches to another phase when any one phase of the two-phase power supply is missing and seamlessly switches to another phase when one-phase power supply is missing; power supply redundancy is performed;

[0105] The power supply switching unit 330 is connected with three-phase alternating current and the power supply unit 320 respectively.

[0106] The units of the system 100 include: a man-machine interaction unit 350, an alarm unit 340, a power supply switching unit 330, a phase switching unit 110, a step-down rectification unit 120, a monitoring unit 130, a switch unit 140, a reverse connection protection unit 150, a power adjustment unit 160, a digital signal input and output unit 170, an analog signal input and output unit 180, a relay switch unit 190, a MOS switch unit 200, a master control unit 240, an input phase sequence identification unit 210, an output phase sequence identification unit 220, a load balancing unit 230, a temperature and humidity detection unit 250, a temperature and humidity detection input unit 260, a communication input unit 270, a GPRS communication unit 280, an Ethernet communication unit 290, a carrier wave communication unit 300, a communication gateway 310, and the like;

[0107] As shown in Figure 1 and Figure 3 , the system 100 further includes:

[0108] The alarm unit 340 sends an alarm reminder when the supply voltage and supply current of the DC load 200 are abnormal.

[0109] The alarm reminder includes sending an alarm reminder to a server or a mobile terminal on the Internet and sending an audible and visual alarm reminder.

[0110] The alarm unit 340 is connected with the communication gateway 310 and the monitoring unit 130, respectively.

[0111] The man-machine interaction unit 350 interacts with the system 100; and facilitates local control.

[0112] The man-machine interaction unit 350 is connected with the units of the system 100.

[0113] In the embodiments of the present application, the time of seamless switching is less than 10 ms.

[0114] In the embodiments of the present application, the units of the DC power remote monitoring and control can be realized by corresponding hardware or software units, and each unit can be an independent software or hardware unit, or can be integrated into a software or hardware unit, which does not limit the present application.

[0115] What has been described herein in the specification and drawings includes examples of a direct current power supply remote monitoring control system and method. Of course, not every conceivable combination of elements and / or method can be described for purposes of describing the various features of the present disclosure, but it will be appreciated that many other combinations and permutations of the disclosed features are possible. It will be apparent, therefore, that various modifications are possible in the present disclosure, without departing from the scope or spirit of the disclosure. Further, or in the alternative, other embodiments of the present disclosure can be apparent from consideration of the specification and drawings and practice of the present disclosure as presented herein. It is intended that the examples presented in the specification and drawings be considered as illustrative and not restrictive in all aspects. Although specific terms are employed in the specification, they are used in a generic and descriptive sense only and not for purposes of limitation.

Claims

1. A remote monitoring control system for a DC power supply, characterized by, The system comprises: One or more phase switching units, which take power from any one phase of the external three-phase alternating current to provide power supply for the voltage reduction rectifier unit, and seamlessly switch to another phase when any one phase of the three-phase alternating current is missing; A voltage reduction rectifier unit, which stably outputs direct current of multiple different voltages to drive one or more direct current loads; One or more monitoring units, which monitor the supply voltage and supply current of the direct current load; A switching unit, which controls the start or stop of any one of the voltage reduction rectifier units; One or more reverse connection protection units, which prevent the direct current load from being connected in reverse; The phase switching unit is connected with the three-phase alternating current, the voltage reduction rectifier unit is connected with the phase switching unit, the switching unit is connected with the voltage reduction rectifier unit, the reverse connection protection unit is connected with the switching unit, and the direct current load is connected with the reverse connection protection unit; The monitoring unit is connected with the voltage reduction rectifier unit or the direct current load, and a power adjustment unit is connected with the voltage reduction rectifier unit.

2. The system of claim 1, wherein, The system further comprises: The supply voltage and supply current of the direct current load are preset; A power adjustment unit controls the voltage reduction rectifier unit to adjust the supply voltage and supply current of any one of the direct current loads according to the preset supply voltage and supply current of the direct current load.

3. The system of claim 1, wherein, The system further comprises: A digital signal input and output unit, which inputs and outputs digital signals; An analog signal input and output unit, which inputs and outputs analog signals; A relay switching unit, which controls the on-off of external electrical signals; A MOS tube switching unit, which controls the on-off of the electrical signals; The digital signal input and output unit, the analog signal input and output unit, the relay switching unit, and the MOS tube switching unit are all connected with and controlled by the master control unit.

4. The system of claim 3, wherein, The system further comprises: An input phase sequence recognition unit, which recognizes whether the phase sequence of the three-phase alternating current is a positive phase sequence or a reverse phase sequence; An output phase sequence recognition unit, which recognizes the phase sequence of the phase output by the phase switching unit; A load balancing unit, which detects the voltage of any one phase of the three-phase alternating current to the zero line, and controls the phase switching unit to take power from the phase with the highest voltage of any one phase of the three-phase alternating current to the zero line to provide power supply for the voltage reduction rectifier unit; The input phase sequence recognition unit, the output phase sequence recognition unit, and the load balancing unit are all connected with the three-phase alternating current, and are all connected with the master control unit; the master control unit obtains the phase sequence of the three-phase alternating current, the phase sequence of the phase output by the phase switching unit, and the voltage of any one phase of the three-phase alternating current to the zero line; the load balancing unit is also connected with the phase switching unit, and the output phase sequence recognition unit is connected with the phase switching switch.

5. The system of claim 1, wherein, The system further comprises: A temperature and humidity detection unit, which detects the temperature and humidity of the current environment; A temperature and humidity detection input unit, which is connected with an external temperature and humidity sensor; A communication input unit, which is connected with external WIFI, Bluetooth, RS232, RS485, CAN, and Ethernet communication devices; A GPRS communication unit is connected with the Internet through a base station; An Ethernet communication unit is connected with the Internet through a wire; The temperature and humidity detection unit and the temperature and humidity detection input unit are connected with the main control unit, and the GPRS communication unit and the Ethernet communication unit are connected with the communication input unit and the main control unit; The GPRS communication unit and the Ethernet communication unit are used for protocol transparent transmission.

6. The system of claim 5, wherein, The system further comprises: A carrier communication unit is connected with external communication equipment through a three-phase alternating current line; The carrier communication unit is connected with the communication input unit, the main control unit and the three-phase alternating current.

7. The system of claim 5, wherein, The system further comprises: A communication gateway is used for converting the communication protocols between the GPRS communication unit and the Ethernet communication unit and the communication input unit, and converting the communication protocols between the GPRS communication unit and the Ethernet communication unit and the main control unit; The communication gateway is connected with the main control unit, the GPRS communication unit, the Ethernet communication unit and the communication input unit.

8. The system of claims 1-8, wherein, The system further comprises: A power supply unit is used for providing power supply for the system after step-down rectification of one phase or two phases of the three-phase alternating current; The power supply unit is connected with each unit of the system; A power supply switching unit is used for providing one phase or two phases of the power supply unit, and seamlessly switching to another phase when any one phase of the two phases is missing, and seamlessly switching to another phase when the one phase is missing; The power supply switching unit is connected with the three-phase alternating current and the power supply unit.

9. The system of claim 1, wherein, The system further comprises: An alarm unit is used for issuing an alarm reminder when the supply voltage and supply current of the direct current load are abnormal; The alarm reminder includes issuing an alarm reminder to a server or a mobile terminal on the Internet and issuing an audible and visual alarm reminder; The alarm unit is connected with the communication gateway and the monitoring unit; A man-machine interaction unit is used for man-machine interaction with the system; The man-machine interaction unit is connected with each unit of the system.

10. A method for remote monitoring and control of a DC power supply, characterized by, The method comprises the following steps: Outputting direct current of multiple different voltages to drive one or more direct current loads; Monitoring the supply voltage and supply current of the direct current load; Opening or closing the power supply of any one of the direct current loads; Issuing an alarm reminder when the supply voltage and supply current of the direct current load are abnormal.

Images