CN109547300B - Control system and control method based on load control unit - Google Patents
Control system and control method based on load control unit Download PDFInfo
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- CN109547300B CN109547300B CN201811315639.3A CN201811315639A CN109547300B CN 109547300 B CN109547300 B CN 109547300B CN 201811315639 A CN201811315639 A CN 201811315639A CN 109547300 B CN109547300 B CN 109547300B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2803—Home automation networks
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2803—Home automation networks
- H04L12/2816—Controlling appliance services of a home automation network by calling their functionalities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
- H04M1/72409—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories
- H04M1/72415—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories for remote control of appliances
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Automation & Control Theory (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Selective Calling Equipment (AREA)
Abstract
The invention discloses a control system and a control method based on a Load Control Unit (LCU). The control system comprises a system master station, a concentrator and a control system, wherein the system master station is used for setting a first control strategy and sending the first control strategy to the concentrator through a wireless network; the concentrator acquires a first control strategy issued by the system master station, and issues the first control strategy to the load control unit through power line carrier communication; the user terminal is provided with an App capable of communicating with the load control unit and is used for customizing a second control strategy for the load control unit, and the priority of the first control strategy is higher than that of the second control strategy; and the load control unit is used for controlling the corresponding electric appliance according to the received first control strategy and/or second control strategy. The invention can facilitate the terminal user to check the control strategy of the LCU time period, and add the strategy according to the requirement, thereby being convenient and flexible to use and improving the control flexibility of the LCU.
Description
Technical Field
The invention relates to intelligent hardware and industrial control, in particular to a control system and a control method based on Bluetooth technology and Load Control Unit (LCU) communication.
Background
The Load Control Unit (LCU) is a new product developed for meeting the requirement of the market for auxiliary load control, and the main functions comprise functions of communication, relay control, state indication and the like, and the LCU is used for realizing power consumption peak load control and user autonomous load control under the condition of power supply shortage of an electric power company.
The LCU can receive a control strategy issued by a system through a Power Line Carrier (PLC), and the control strategy is divided into two modes of time interval control and real-time control:
and (3) time interval control: the system issues the time interval control strategy to the LCU of the area through the concentrator, and the LCU automatically executes the switching-on and switching-off strategy according to the time interval to realize the load control of the area.
And (3) real-time control: the system issues a real-time control strategy to the LCU in the area through the concentrator, in order to ensure the reliability of switching-on, a real-time control command needs to take switching-off time, the time is in hours and can be set in an interval of 1-24 hours, and when the set time period passes, the LCU automatically switches on.
The control strategy issued by the system is received by the PLC, the system only can be issued remotely by depending on the PLC system, and the LCU of the terminal cannot check the control strategy; the strategy cannot be controlled in time locally, and emergency change is made; in addition, the LCU of the terminal only has a number and can be used for industrial control, but for a common user terminal, different LCUs can not be intuitively known to correspond to different electric appliances.
Disclosure of Invention
In order to solve the above technical problems, the present invention provides a control system and a control method based on a load control unit.
The invention adopts the following technical scheme:
a control system based on a load control unit comprises,
the system master station is used for setting a first control strategy and sending the first control strategy to the concentrator through a wireless network;
the concentrator acquires a first control strategy issued by the system master station, and issues the first control strategy to the load control unit through power line carrier communication;
the control system also comprises a user terminal, wherein the user terminal is provided with an App capable of communicating with the load control unit and is used for customizing a second control strategy for the load control unit, and the priority of the first control strategy is higher than that of the second control strategy;
and the load control unit is used for controlling the corresponding electric appliance according to the received first control strategy and/or second control strategy.
Further, the user terminal reads the first control strategy in the load control unit through the App. The control strategy is convenient for the user to visually see.
Further, the user terminal transmits the second control strategy to a system main station through a wireless network. The system master station can record the second control strategy of the APP, and can synchronize to the first and second control strategies when the user switches the equipment or logs in the account.
Further, the user terminal communicates with the load control unit through Bluetooth, UART serial port communication is adopted, the serial port baud rate is 4800bps, 8-bit data bit, 1-bit stop bit and no check bit, and the serial port adopts transparent transmission. The Bluetooth adopts a V4.0 version protocol, the frequency of 2.4GHz, the working transmitting power is 0dBm, the communication distance reaches 5m, and the success rate is not less than 98% under the condition that the number of bytes of communication is less than 50 bytes, and a patch module mode is adopted.
Furthermore, the load control unit comprises a control unit and at least one execution unit connected with the control unit, and each execution unit correspondingly controls at least one electric appliance; and the user terminal edits the name of the corresponding execution unit through the App so as to correspond to the electric appliance controlled by each execution unit. The management of the electric appliance is convenient.
Further, the user terminal is preferably a smart phone and supports two system versions of iOS and android.
Furthermore, the PLC power carrier communication adopts a scheme of Rayskang 3501E (132Khz) carrier, the protocol conforms to DLMS standard (HDLC mode), the LCU and the concentrator communication protocol DLMS can not be linked by a link layer and an application layer in consideration of communication reliability, the baud rate is 4800bps, 8-bit data bits and no check bits.
Further, the Load Control Unit (LCU) has the main functions of communication, relay control, status indication, etc., and is used for the electric power company to realize peak load control and user-independent load control in the case of power supply shortage.
Further, the first control strategy is a time interval control strategy or a real-time control strategy.
And (3) time interval control: the system issues the time interval control strategy to the LCU of the area through the concentrator, and the LCU automatically executes the switching-on and switching-off strategy according to the time interval to realize the load control of the area.
And (3) real-time control: the system issues a real-time control strategy to the LCU in the area through the concentrator, in order to ensure the reliability of switching-on, a real-time control command needs to take switching-off time, the time is in hours and can be set in an interval of 1-24 hours, and when the set time period passes, the LCU automatically switches on.
A control method based on a load control unit, comprising:
setting a first control strategy through a system master station, and issuing the first control strategy to a concentrator through a wireless network; after acquiring a first control strategy issued by a system master station, the concentrator issues the first control strategy to a load control unit through power line carrier communication;
establishing wireless communication connection between a user terminal and a corresponding load control unit, and customizing a second control strategy to the load control unit through the user terminal, wherein the priority of the first control strategy is higher than that of the second control strategy;
and the load control unit is used for controlling the corresponding electric appliance according to the received first control strategy and/or second control strategy.
Further, the establishing of the wireless communication connection between the user terminal and the corresponding load control unit specifically includes:
and the user completes authentication through the App installed on the user terminal, completes Bluetooth pairing of the user terminal and the corresponding load control unit, and then keeps the distance between the user terminal and the corresponding load control unit within 10m to establish Bluetooth communication connection.
Further, the user terminal reads the first control strategy in the load control unit through the App; and the user terminal transmits the second control strategy to a system main station through a wireless network. The system master station can record the second control strategy of the APP, and can synchronize to the first and second control strategies when the user switches the equipment or logs in the account.
Further, the user terminal communicates with the load control unit through a Bluetooth 4.0 version protocol, UART serial port communication is adopted, the serial port baud rate is 4800bps, 8-bit data bit, 1-bit stop bit and no check bit, and the serial port adopts transparent transmission.
Furthermore, the load control unit comprises a control unit and at least one execution unit connected with the control unit, and each execution unit correspondingly controls at least one electric appliance; and the user terminal edits the name of the corresponding execution unit through the App so as to correspond to the electric appliance controlled by each execution unit.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the control strategy in the LCU can be read by using the APP through Bluetooth and visually displayed on the APP page, compared with the existing scheme of issuing the control strategy through the PLC, a terminal user can visually perceive the control strategy and can make a certain prejudgment on a terminal event;
2. the invention can not only issue the control strategy through the PLC, but also issue the control strategy through the APP at the user terminal, thus saving the cost issued by the PLC and avoiding the defect that the PLC system is influenced by more external interference factors (including inductance and circuit system aging);
3. the invention can control the LCU, and the App edits the name of the corresponding execution unit to correspond to the electric appliances controlled by each execution unit, so that the mobile phone APP can not only see the execution unit corresponding to the LCU, but also know which electric appliance corresponds to the LCU;
4. the control system provided by the invention only needs to add the Bluetooth interface on the existing LCU, does not need to add other parts, has low modification cost and is suitable for popularization. Bluetooth 4.0 also has the advantage of low power consumption, and the communication interface conversion between RS232 and Bluetooth can be easily realized, and the Bluetooth interaction process of the mobile phone and the ammeter can realize communication only by the mobile phone within the range of 10 m.
Drawings
FIG. 1 is a block diagram of the present invention.
In the figure, 1-system main station, 2-concentrator, 3-load control unit, 4-user terminal.
Detailed Description
In order to facilitate understanding of the technical solutions of the present invention, the following detailed description is made with reference to the accompanying drawings and specific embodiments.
The invention is mainly used for realizing power consumption peak load control and user autonomous load control under the condition of power supply shortage of an electric power company, and meanwhile, can facilitate a terminal user to check the control strategy of an LCU time period.
A control system based on a load control unit comprises,
the system comprises a system main station 1, a concentrator 2 and a wireless network (GPRS/3G/4G/WIFI); the first control strategy can be a control strategy which is preset by a manufacturer or a user;
the concentrator 2 acquires a first control strategy issued by the system master station, and issues the first control strategy to the load control unit 3 through power line carrier communication;
the user terminal 4 is provided with an App capable of communicating with the load control unit 3 through Bluetooth and is used for customizing a second control strategy for the load control unit 3, and the priority of the first control strategy is higher than that of the second control strategy; the App is also used for reading the first control strategy in the load control unit and editing the name of the corresponding execution unit of the App through the App;
a Load Control Unit (LCU)3, which has the main functions of communication, relay control, state indication and the like, and is used for realizing the load control of the peak power consumption load and the autonomous load control of users under the condition of power supply shortage by a power company; the system comprises a control unit and at least one execution unit connected with the control unit, wherein each execution unit correspondingly controls at least one electric appliance; the user terminal 4 edits the names of the corresponding execution units through the App to correspond to the electrical appliances (such as water heaters, air conditioners, televisions and the like) controlled by the execution units, and controls the corresponding electrical appliances according to the received first control strategy and/or second control strategy.
In addition, the user terminal 4 transmits the second control strategy to the system master station 1 through a wireless network. The system master station can record the second control strategy of the APP, and can synchronize to the first and second control strategies when the user switches the equipment or logs in the account. And a network channel is established between the App application and the system master station 1 through a GPRS/3G/4 GWIFII network.
The power line carrier communication adopts a Rayskang 3501E (132Khz) carrier scheme, a protocol accords with a DLMS standard (HDLC mode), the LCU and a concentrator communication protocol DLMS do not need to be linked with a link layer and an application layer in consideration of communication reliability, and the baud rate is 4800bps, 8-bit data bits and no check bits.
Near field communication is established between the user terminal 4 and the load control unit 3 through Bluetooth 4.0, the Bluetooth adopts 2.4GHz frequency, the work transmitting power is 0dBm, the communication distance reaches 5m, the success rate is not less than 98% under the condition that the number of communication bytes is less than 50 bytes, and a form of a patch module is adopted. The method adopts a V4.0 version protocol and UART serial port communication, the serial port baud rate is 4800bps, 8-bit data bit, 1-bit stop bit and no check bit, and the serial port adopts transparent transmission.
Further, the load control unit 3 can control time or time intervals, has a clock characteristic, and in order to ensure the accuracy of a time interval control strategy, the LCU should have a built-in clock, and maintain the clock to work for at least 1 day through the super capacitor under the power failure condition. The time synchronization of the LCU can be only issued by the system main station and cannot be controlled by the APP.
Further, the load control unit 3 is provided with a communication indicator light, when there is communication in the uplink or downlink, the indicator light flashes, the uplink and downlink communication uses different frequency flashes, and a green indicator light is used. The LCU is provided with an operation indicator lamp for indicating the operation state of the LCU, the indicator lamp is normally on when in normal operation, and the indicator lamp is turned off when in power failure, and a green indicator lamp is adopted. The LCU is provided with an alarm indicator light, and the indicator light is turned on when the controller detects a fault, and a red indicator light is adopted. The type of failure: clock chaos and no mutual information of the communication module for a long time.
A control method based on a load control unit, comprising:
a first control strategy is set through a system master station 1, and the first control strategy is issued to a concentrator 2 through a wireless network; after acquiring the first control strategy issued by the system master station 1, the concentrator 2 issues the first control strategy to the load control unit 3 through power line carrier communication;
a user completes authentication through an App installed on a user terminal 4, completes Bluetooth pairing of the user terminal 4 and a corresponding load control unit 3, then keeps the distance between the user terminal 4 and the corresponding load control unit 3 within 10m, establishes Bluetooth communication connection, and self-defines a second control strategy to the load control unit 3 through the user terminal 4, wherein the priority of the first control strategy is higher than that of the second control strategy;
and the load control unit 3 is used for controlling the corresponding electric appliance according to the received first control strategy and/or second control strategy.
Further, the user terminal 4 may read the first control policy in the load control unit 3 through the App; the name of the corresponding execution unit of the load control unit 3 can be edited by the App to correspond to the electric appliance controlled by each execution unit; and the user terminal 4 transmits the second control strategy to the system main station 1 through a wireless network. The system master station can record the second control strategy of the APP, and can synchronize to the first and second control strategies when the user switches the equipment or logs in the account.
The above is only a preferred embodiment of the present invention, and the scope of the present invention is defined by the appended claims, and several modifications and amendments made by those skilled in the art without departing from the spirit and scope of the present invention should be construed as the scope of the present invention.
Claims (10)
1. A control system based on a load control unit comprises,
the system comprises a system main station (1) and a concentrator (2), wherein the system main station is used for setting a first control strategy and sending the first control strategy to the concentrator (2) through a wireless network;
the concentrator (2) acquires a first control strategy issued by the system master station (1), and issues the first control strategy to the load control unit (3) through power line carrier communication;
the method is characterized in that: the control system also comprises a user terminal (4), wherein the user terminal is provided with an App capable of communicating with the load control unit (3) and is used for customizing a second control strategy for the load control unit (3), and the priority of the first control strategy is higher than that of the second control strategy;
and the load control unit (3) is used for controlling the corresponding electric appliance according to the received first control strategy and/or second control strategy.
2. The load control unit-based control system of claim 1, wherein: and the user terminal (4) reads the first control strategy in the load control unit (3) through the App.
3. The load control unit-based control system of claim 1, wherein: and the user terminal (4) transmits the second control strategy to the system main station (1) through a wireless network.
4. The load control unit-based control system of claim 1, wherein: the user terminal (4) is communicated with the load control unit (3) through Bluetooth, UART serial port communication is adopted, the serial port baud rate is 4800bps, 8-bit data bit, 1-bit stop bit and no check bit, and the serial port adopts transparent transmission.
5. The load control unit-based control system of claim 1, wherein: the load control unit (3) comprises a control unit and at least one execution unit connected with the control unit, and each execution unit correspondingly controls at least one electric appliance; and the user terminal (4) edits the name of the corresponding execution unit through the App so as to correspond to the electric appliance controlled by each execution unit.
6. A control method based on a load control unit is characterized by comprising the following steps:
a first control strategy is set through a system master station (1), and the first control strategy is issued to a concentrator (2) through a wireless network; after acquiring a first control strategy issued by a system master station (1), a concentrator (2) issues the first control strategy to a load control unit (3) through power line carrier communication;
establishing wireless communication connection between a user terminal (4) and a corresponding load control unit (3), and customizing a second control strategy for the load control unit (3) through the user terminal (4), wherein the priority of the first control strategy is higher than that of the second control strategy;
and the load control unit (3) is used for controlling the corresponding electric appliance according to the received first control strategy and/or second control strategy.
7. The load control unit-based control method according to claim 6, wherein the establishing of the wireless communication connection between the user terminal (4) and the corresponding load control unit (3) comprises:
the user completes authentication through an App installed on the user terminal (4), completes Bluetooth pairing of the user terminal (4) and the corresponding load control unit (3), and then keeps the distance between the user terminal and the corresponding load control unit (3) within 10m to establish Bluetooth communication connection.
8. The load control unit-based control method of claim 7, wherein: the user terminal (4) reads the first control strategy in the load control unit (3) through the App; and the user terminal (4) transmits the second control strategy to the system main station (1) through a wireless network.
9. The load control unit-based control method of claim 6, wherein: the user terminal (4) is communicated with the load control unit (3) through a Bluetooth 4.0 version protocol, UART serial port communication is adopted, the serial port baud rate is 4800bps, 8-bit data bits, 1-bit stop bits and no check bits, and the serial port adopts transparent transmission.
10. The load control unit-based control method of claim 7, wherein: the load control unit (3) comprises a control unit and at least one execution unit connected with the control unit, and each execution unit correspondingly controls at least one electric appliance; and the user terminal (4) edits the name of the corresponding execution unit through the App so as to correspond to the electric appliance controlled by each execution unit.
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