CN106961158A - One kind matches somebody with somebody electrical equipment management method and system - Google Patents

Abstract

The invention discloses a management method and system for power distribution and utilization equipment, and relates to the technical field of power distribution and utilization. Including initializing the equipment management system, setting the parameters required by the power distribution equipment management system; starting the self-test and indication function, checking whether the equipment management system is running normally and instructing the operation according to the test results; The metering function measures the data required by the power distribution equipment management system; after the metering is completed, the data is processed and stored, and a processing signal is generated; the status of the processing signal is judged, and processing is performed according to the status of the processing signal. After adopting the above scheme, it can integrate electric energy metering, carrier communication and control processing, with high integration and no distance limitation, which improves the operating efficiency and quality of operators, and is conducive to popularization.

Description

A method and system for managing power distribution equipment

technical field

The invention relates to the technical field of power distribution and utilization, in particular to a management method and system for power distribution and utilization equipment.

Background technique

In recent years, smart homes and smart factories have received continuous attention in theoretical research and engineering practice because of their outstanding advantages in comprehensive efficiency utilization. Among them, the power management system is an important support for the realization of home intelligence and factory intelligence. The intelligent management terminal of power distribution equipment is the basic component of building a power management system, which can not only realize the collection of power information, but also complete the protection and control of electrical equipment.

Existing literature shows that smart sockets with wireless communication functions such as WIFI and energy metering functions are considered to be the most important intelligent terminals for realizing power management of electrical equipment, and based on this research and development of corresponding smart power management systems, The above-mentioned intelligent management terminal adopts wireless communication mode, although it is convenient to realize the control of electrical equipment, but due to the low integration of wireless communication modules such as WIFI and the limited control distance, the socket is too large and the cost is too high, so it is difficult to realize practical promotion application.

Contents of the invention

The technical problem to be solved by the present invention is to provide a management method and system for electric power distribution equipment in view of the deficiencies of the above-mentioned prior art, which can integrate electric energy measurement, carrier communication and control processing, with high integration and no distance limitation. Improve the operating efficiency and quality of operators, which is conducive to promotion.

The technical scheme that the present invention takes is:

A method for managing power distribution equipment, comprising the following steps:

(1) Initialize the equipment management system and set the parameters required by the power distribution equipment management system;

(2) Start the self-test and indication function, check whether the equipment management system is running normally, and instruct the operation according to the test results;

(3) After the test result of the testing equipment management system is normal, start the power metering function to measure the data required by the power distribution equipment management system;

(4) After the measurement is completed, the data is processed and stored, and a processing signal is generated;

(5) Judging the state of the processing signal, and processing according to the state of the processing signal; the state of the processing signal includes the sending state and the receiving state. When it is in the sending state, start the carrier sending function, and after verifying that the sending signal is successful, start the state storage and indication function; when in the receiving state, start the receiving action function, and start the state storage and indication function after checking the switch action state successfully.

As a further technical solution, the detection result in the step (2) also includes the detection result of the detection equipment management system is abnormal, and if the detection result of the detection equipment management system is abnormal, it will be processed according to the defect indication displayed by the system.

As a further technical solution, in the step (3), the data required by the metering and distribution equipment management system are several times of metering.

A system used in the management method of power distribution and consumption equipment, including: a core control module, a signal interface module, a power acquisition module, a control output module, a system self-test and indication module, a parameter setting and data storage module, a power supply module, and a core control module The communication with the centralized control terminal is realized through the low-voltage power line. The signal interface module is bidirectionally connected with the core control module for sending and receiving signals. The power collection module is connected to the data input terminal of the core control module, and the output terminal of the core control module is connected to the The input terminal of the control output module, the power module is connected to the power collection module, the control output module and the core control module, and is used to convert 220V AC into DC to supply power to the connected modules, the signal interface module, the power collection module, and the control output The other end of the module and the power module are connected to the same load, and the system self-detection and indication module is bidirectionally connected with the core control module, which is used to detect the operating status of the system and give instructions according to the indication status, parameter setting and data storage module and the core control module The modules are bidirectionally connected.

As a further technical solution, the power collection module is connected with the power metering unit in the core control module to realize accurate metering of electric energy.

As a further technical solution, the power collection module includes a voltage collection unit and a current collection unit, which respectively realize the collection of voltage signals and current signals.

As a further technical solution, the signal interface module includes a signal sending unit, a signal receiving unit and a signal isolating unit, the signal isolating unit is used to realize the isolation of the weak current circuit and the strong current circuit, and the signal sending unit is used to realize the isolation by the core control module through The low-voltage line sends coupling power signals to the centralized control terminal, and the signal receiving unit is used to receive various operating signals sent from the centralized control terminal to the core control module.

As a further technical solution, the parameter setting and data storage module includes a parameter setting unit and a data storage unit, the parameter setting unit is used to select and determine parameters such as carrier communication transmission frequency and channel, and the data storage unit is an external storage unit for realizing External storage of power data, clock data, etc. after power failure to prevent data loss.

The beneficial effects produced by adopting the above technical solution are: the present invention provides a management method and system for power distribution equipment, which can integrate electric energy metering, carrier communication and control processing, with high integration, no distance limitation, and improved operation The operating efficiency and quality of personnel are conducive to promotion.

Description of drawings

Fig. 1 is a method step diagram of an embodiment of the present invention;

Fig. 2 is a block diagram of an embodiment of the present invention;

Fig. 3 is a schematic circuit diagram of an embodiment of the present invention;

Figure 4 is a flowchart of one embodiment of the present invention.

detailed description

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Embodiment 1: As shown in FIG. 1, it is an embodiment of a method for managing power distribution equipment of the present invention, which includes the following steps:

Initialize the equipment management system and set the parameters required by the electrical equipment management system;

Start the self-test and indication function, check whether the equipment management system is running normally and instruct the operation according to the test results;

Specifically, there will be two kinds of test results in the testing equipment management system, including normal test results and abnormal test results. If the test results are normal, start the power metering function and proceed to the next step; If it is not normal, it will return to process according to the defect instruction. After the process is completed, the equipment management system will be tested again, and this cycle will continue until the test result is normal, and then proceed to the next step.

After the detection result of the detection equipment management system is normal, the power metering function is started to measure the data required by the power distribution equipment management system;

Specifically, the data required by the metering and distribution equipment management system are several times of metering, that is, accurate data obtained after taking values from multiple measurements.

After the measurement is completed, the data is processed and stored, and a processing signal is generated;

Judge the state of the processing signal, and make processing according to the state of the processing signal.

Specifically, the status of the processing signal includes the sending status and the receiving status. When it is in the sending status, the carrier transmission function is started. After the verification of the sent signal is successful, the status storage and indication function is started; when it is in the receiving status, the receiving action function is started and the switch is checked. After the action status is successful, start the status storage and indication function.

Embodiment 2: As shown in Figure 2, it is a module structure diagram of the present invention, including: a core control module, a signal interface module, a power acquisition module, a control output module, a system self-test and indication module, a parameter setting and data storage module and The power supply module and the core control module communicate with the centralized control terminal through low-voltage power lines. The signal interface module is bidirectionally connected with the core control module for sending and receiving signals. The power collection module is connected to the data input terminal of the core control module for Realize accurate measurement of electricity, the output end of the core control module is connected to the input end of the control output module, which is used to realize the on-off control of the output circuit by the core control module, and the power module is connected with the power collection module, control output module and core control module , used to convert 220V AC to DC to supply power to the connected modules. The other ends of the signal interface module, power acquisition module, control output module and power module are all connected to the same load. The system self-test and indication module and the core The control module is bi-directionally connected to detect the operating status of the system and give instructions according to the indication status, and the parameter setting and data storage module is bi-directionally connected to the core control module to select and determine parameters and store data.

The core control module includes a power metering unit, a carrier communication unit, and a signal processing and control unit. The signal output of the power metering unit is connected to the signal input of the signal processing and control unit, and the signal output of the signal processing and control unit is connected to the carrier communication unit. The signal input terminal of the unit is used to realize the functions of electric energy measurement, signal processing and carrier communication.

The power collection module is connected with the electric energy measurement unit in the core control module to realize accurate measurement of electric energy. The power collection module includes a voltage collection unit and a current collection unit, which respectively realize the collection of voltage signals and current signals. The power collection module consists of The voltage acquisition unit and the current acquisition unit are connected to the voltage and current acquisition of PL3201 respectively to realize the energy metering function.

Specifically, the voltage acquisition unit composed of a voltage transformer PT is connected to the LIP and LIN ports of the chip to realize the collection of voltage signals; the current acquisition unit composed of a current transformer CT is connected to the IOP and ION ports of the chip to realize the current signal collection.

The signal interface module includes a signal sending unit, a signal receiving unit and a signal isolation unit. The signal isolation unit is used to isolate the weak current circuit from the strong current circuit. The power signal, the signal receiving unit is used to receive all kinds of operation signals sent from the centralized control terminal to the core control module.

Specifically, the signal interface module is composed of a transformer Trans, a hardware filter circuit XC3230, a current limiting resistor R11, and a Zener diode, etc., to realize the power carrier transmission of the electric energy metering signal and the reception of the switch operation signal.

The parameter setting and data storage module includes a parameter setting unit and a data storage unit. The parameter setting unit is used to select and determine parameters such as carrier communication transmission frequency and channel. The data storage unit is an external storage unit for realizing power data and clock data after power failure. and other external storage to prevent data loss.

The power module is composed of a transformer unit, a rectifier unit, and a voltage stabilization unit, and is used to convert 220V AC into 5V, 12V, and 24V DC to supply power to other modules. The power module is connected to the power acquisition module to realize power from the system , and supply power to the core control module, control output module, self-detection and indication module, parameter setting and data storage module, etc., the power supply module provides stable and reliable DC power for the entire management terminal, and the transformer TS1 converts 220V AC power into 25V DC power, the output terminal of transformer TS1 obtains +24V, +15V and +5V DC power through the rectifier bridge and DC voltage regulator chip respectively, and supplies power to the core control module, signal interface module, power acquisition module, control output module, self-test and indication respectively module, parameter setting and data storage module.

As shown in Figure 2, the power supply module provides a stable and reliable DC power supply for the entire management terminal. Transformer TS1 converts 220V AC power into 25V DC power, and the output terminal of transformer TS1 obtains +24V, +24V, + 15V and +5V DC power supplies respectively supply power to the core control module, signal interface module, power acquisition module, control output module, self-test and indication module, parameter setting and data storage module.

Described core control module, its control core is PL3201 chip, and this chip has electric energy metering function, carrier communication function and 51 core single-chip signal processing functions, greatly simplifies the complexity of circuit, reduces device cost.

The self-detection and indication module is connected with the P3.4 port of the chip PL3201 and the reverse output of the LM339AD comparator, and connected to the light-emitting diode VL2 after current limiting to realize the system detection and indication function. That is, the system monitors the program operation in real time through the software watchdog program. When the program operation error is found, the software is reset. If the reset is successful, the count is uploaded. Otherwise, the operation error is indicated by lighting VL2.

The parameter setting and data storage module is composed of a parameter setting unit and a data storage unit. The parameter setting unit is a dial key system composed of three dial switches SW1, SW2, and SW3. Different communication frequencies are set through the dial keys to realize online operation of multiple terminals. SW1 and SW2 realize the selection of communication frequency, and SW3 realizes the state judgment in the mode debugging stage. Among them, SW1 and SW2 respectively correspond to the box change numbers as shown in Table 1. The second part is the data storage unit composed of X5045. The communication ports of X5045 are respectively connected to P1.6, P3.1, and P3.7 of PL3201. Through the data communication with PL3201, the data storage and power-off protection of data are realized.

The setting scheme of SW1 and SW2 corresponding to the carrier frequency

Box change number SW2.4 SW2.3 SW2.2 SW2.1 SW1.4 SW1.3 SW1.2 SW1.1 way 1 0 0 0 0 0 0 0 1 way 2 0 0 0 0 0 0 1 0 way 3 0 0 0 0 0 0 1 1 ... ... ... ... ... ... ... ... ...

The control output module is composed of an inverter SN74HC14C and a relay KE2, and the main contact of the relay KE2 is a terminal air switch. Control the relay KE2 through the P1.4 port of PL3201, and then realize the opening and closing operation of the air switch.

The power collection module is composed of a voltage collection unit and a current collection unit, which are respectively connected to the voltage and current collection of the PL3201 to realize the power metering function. Specifically, the voltage acquisition unit composed of a voltage transformer PT is connected to the LIP and LIN ports of the chip to realize the collection of voltage signals; the current acquisition unit composed of a current transformer CT is connected to the IOP and ION ports of the chip to realize the current signal acquisition.

The signal interface module is composed of a transformer Trans, a hardware filter circuit XC3230, a current-limiting resistor R11, and a Zener diode, etc., and realizes the power carrier transmission of the electric energy measurement signal and the reception of the switch operation signal.

Embodiment 3: As shown in Figure 3, it is a schematic circuit diagram of the present invention, which includes a circuit connection diagram of a power supply module, a power collection module, a signal interface module, a control output module and a core control module.

Embodiment 4: as shown in Figure 4, it is a flowchart of the present invention, after the equipment is powered on, the MCU signal processing module initializes the system; judge whether the carrier communication transmission frequency and the channel need to be set, if so, then start the parameter setting subroutine; otherwise , start the self-inspection and indication subroutine; start the self-inspection and indication subroutine to detect whether there is any abnormality in the operation of the system, if so, start the defect indication and diagnosis subroutine; otherwise, start the electric energy measurement subroutine until the measurement is completed; multiple measurements After taking the value, start the data processing and storage subroutine, and then start the external interrupt to judge the signal receiving and sending status; in the sending state, start the carrier sending subroutine, and after verifying that the sending signal is successful, start the status storage and indicator subroutine Program; when in the receiving state, start the receiving action subroutine, and after checking the switch action status successfully, start the state storage and indication subroutine; after the status storage and indication subroutine is completed, return to start the self-test and indication subroutine.

After adopting the above technical solution, it can integrate electric energy measurement, carrier communication and control processing, with high integration and no distance limitation, which improves the operating efficiency and quality of operators, and is conducive to popularization.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (9)

1. A method for managing power distribution equipment, characterized in that it comprises the following steps: (1) Initialize the equipment management system and set the parameters required by the power distribution equipment management system; (2) Start the self-test and indication function, check whether the equipment management system is running normally, and instruct the operation according to the test results; (3) After the test result of the testing equipment management system is normal, start the power metering function to measure the data required by the power distribution equipment management system; (4) After the measurement is completed, the data is processed and stored, and a processing signal is generated; (5) Judging the state of the processing signal, and processing according to the state of the processing signal; the state of the processing signal includes the sending state and the receiving state. When it is in the sending state, start the carrier sending function, and after verifying that the sending signal is successful, start the state storage and indication function; when in the receiving state, start the receiving action function, and start the state storage and indication function after checking the switch action state successfully. 2. A management method for power distribution equipment according to claim 1, characterized in that the detection result in the step (2) also includes the detection result of the detection equipment management system is abnormal, if the detection result of the detection equipment management system is abnormal When it is normal, handle it according to the defect indication displayed by the system. 3. A management method for power distribution and consumption equipment according to claim 1, characterized in that in the step (3), the data required by the management system for measuring distribution and consumption equipment is several times of measurement. 4. A system used in a management method for power distribution equipment as claimed in claims 1-3, characterized in that it includes: a core control module, a signal interface module, a power collection module, a control output module, a system self-test and indication module, and a parameter Setting and data storage module and power supply module, the core control module communicates with the centralized control terminal through low-voltage power lines, the signal interface module and the core control module are bidirectionally connected to realize the sending and receiving of signals, and the power acquisition module is connected to the core control module The data input terminal, the output terminal of the core control module is connected to the input terminal of the control output module, and the power supply module is connected to the power acquisition module, control output module and core control module, and is used to convert 220V AC power into DC power for the connected modules. For power supply, the other ends of the signal interface module, power acquisition module, control output module and power supply module are all connected to the same load, and the system self-detection and indication module is bidirectionally connected with the core control module, which is used to detect the operating status of the system and according to the indication status Instructions, parameter setting and bidirectional connection between the data storage module and the core control module. 5. A management system for power distribution equipment according to claim 4, wherein the core control module includes an electric energy metering unit, a carrier communication unit, and a signal processing and control unit, and the signal output terminal of the electric energy metering unit is connected to The signal input end of the signal processing and control unit, and the signal output end of the signal processing and control unit are connected to the signal input end of the carrier communication unit for realizing the functions of electric energy measurement, signal processing and carrier communication. 6. A management system for power distribution and consumption equipment according to claim 5, characterized in that the power collection module is connected with the power metering unit in the core control module for realizing accurate power metering. 7. A management system for power distribution and consumption equipment according to claim 6, characterized in that the power collection module includes a voltage collection unit and a current collection unit, which respectively realize the collection of voltage signals and current signals. 8. A management system for power distribution equipment according to claim 4, characterized in that the signal interface module includes a signal sending unit, a signal receiving unit and a signal isolation unit, and the signal isolation unit is used to realize the separation between weak current circuits and strong current circuits. Circuit isolation, the signal sending unit is used to realize the coupling power signal sent by the core control module to the centralized control terminal through the low-voltage line, and the signal receiving unit is used to realize receiving various operation signals sent from the centralized control terminal to the core control module. 9. A management system for power distribution equipment according to claim 4, wherein said parameter setting and data storage module includes a parameter setting unit and a data storage unit, and the parameter setting unit is used to select and determine carrier communication transmission frequency and Channel and other parameters, the data storage unit is an external storage unit, which is used to realize the external storage of power data, clock data, etc. after power failure to prevent data loss.