CN104569577A - Household electricity utilization information acquisition system based on micropower wireless communication protocol - Google Patents
Household electricity utilization information acquisition system based on micropower wireless communication protocol Download PDFInfo
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- CN104569577A CN104569577A CN201410840570.1A CN201410840570A CN104569577A CN 104569577 A CN104569577 A CN 104569577A CN 201410840570 A CN201410840570 A CN 201410840570A CN 104569577 A CN104569577 A CN 104569577A
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Abstract
The invention relates to a household electricity utilization information acquisition system based on a micropower wireless communication protocol. A keyboard selects a controlled terminal and sets the controlled terminal as a measurement point; an instruction is sent to a control module; the control module generates a control command according to the instruction and sends the control command to a micropower wireless slave module through a micropower wireless master module; the micropower wireless master module sends a networking beacon and receives neighbor table information and field intensity table information of the controlled terminal, and a communication path is configured for the controlled terminal, so that networking is finished by a mesh networking mode; the control command is sent, and electricity utilization information is received and processed; a metering chip is used for acquiring and storing the electricity utilization information of electricity utilization equipment in real time; the micropower wireless slave module receives and routing-forwards the networking beacon and the control command, so that the neighbor table information and field intensity table information of the controlled terminal can be obtained according to the networking beacon and are forwarded to the micropower wireless master module; the electricity utilization information is sent to the micropower wireless master module according to the control command.
Description
Technical field
The present invention relates to power information acquisition technique field, particularly a kind of household electricity information acquisition system based on micro power radio communication agreement.
Background technology
The object-oriented of intelligent grid is power administration, and Smart Home stresses to control the use of household electrical appliances more.Mostly the electricity consumption situation of current people to household electricity equipment is to be experienced by long-term power consumption, be unfavorable for that people are to the management of household electrical appliances electricity consumption and control like this, but the appearance of household electricity information acquisition system solves above problem.Current household electricity acquisition system scheme has: one is the acquisition scheme of electricity consumption acquisition system using for reference intelligent grid, as power line carrier scheme; One is the acquisition scheme of quantity of information conventional in Smart Home scheme, as ZigBee technology, wifi technology etc.
Above-mentioned the first scheme-power line carrier scheme, is widely used, technology relative maturity at present in electrical network electricity consumption acquisition system, only needs on intrasystem communication end point, add that a small amount of elements such as trap can realize communication.But the shortcoming of this scheme is poor signal quality, narrow bandwidth etc.
In above-mentioned first scheme, the shortcoming of ZigBee scheme is: product development difficulty is large, the construction cycle is long, cost of products is high, and its Signal transmissions frequency and home gateway Wifi are on same frequency, easily produce interference.And the shortcoming of the household electricity acquisition system of Wifi scheme is: power consumption is high, networking capability is low, extending space is limited, cost of products is high.
Be badly in need of breaking through prior art, solve the problems of the technologies described above.
Summary of the invention
For solving the problem of prior art, utilize the feature of micropower wireless product, the present invention proposes a kind of household electricity information acquisition system based on micro power radio communication agreement, and system is operated in from home gateway on different frequencies when information transmission, and the interference between signal is little.
For achieving the above object, the invention provides a kind of household electricity information acquisition system based on micro power radio communication agreement, comprising: power monitoring terminal and controlled terminal; Wherein, described power monitoring terminal comprises keyboard, control module, micropower wireless master module; Described controlled terminal comprises: computation chip, micropower are wireless from module;
Described keyboard, for selecting controlled terminal and being set to measurement point; Instruction is sent to control module; Wherein, the ID phase mapping relations of described measurement point and controlled terminal;
Control module, for generating control command according to described instruction, and it is wireless from module that control command is sent to micropower by micropower wireless master module;
Described micropower wireless master module, for sending networking beacon, receive neighbor table information and the field intensity set information of controlled terminal, according to the neighbor table information of described controlled terminal and the id information of field intensity set information, measurement point and correspondence to controlled terminal configuration communication path, complete networking by mesh networking mode; Send control command; Accept power information and process;
Described computation chip, for Real-time Collection, the power information storing consumer;
Described micropower is wireless from module, for reception, routing forwarding networking beacon and control command, obtain neighbor table information and the field intensity set information of described controlled terminal according to described networking beacon, described neighbor table information and field intensity set information are forwarded to described micropower wireless master module; And according to control command, described power information is sent to described micropower wireless master module.
Preferably, described power monitoring terminal also comprises: display chip; Wherein, described display chip is used for the power information after the process of described micropower wireless master module to show.
Preferably, described control command comprises reading controlled end test point data command and thoroughly copies controlled end test point data command.
Preferably, generate when described control module also sets up measurement point for keyboard described after networking completes and restart networking commands.
Preferably, described micropower wireless master module and described micropower is wireless includes microprocessor and radio frequency chip from module.
Preferably, described micropower wireless master module also comprises RJ45 network interface.
Preferably, the working frequency points of described micropower wireless master module and the wireless working frequency points from module of described micropower are 470MHz ~ 510MHz.
Technique scheme has following beneficial effect: the network of the technical program composition, based on micropower protocol communication, disturbs little with home gateway mutually, and communication success ratio is high.Further, the technical program have employed the networking mode of mesh net, if certain controlled end breaks down do not affect the communication of monitoring client and other controlled end, improves the robustness of network.In addition, the technical program can be measured respectively to household electricity equipment, and can inquire about the electricity consumption situation of each consumer at any time.Change and traditional can only understand electricity consumption situation by family's household electric meter, and for the electricity consumption of each consumer in family present situation in confused situation.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of household electricity information acquisition system block diagram based on micro power radio communication agreement that the present invention proposes.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The principle of work of the technical program: compared to Zigbee scheme, micropower wireless product has the advantages that development difficulty is little, the cycle is short, and is operated on different frequencies from home gateway, and the interference between signal is little.Compared to Wifi scheme, the advantage of the micropower wireless solution of working frequency points between 470MHz ~ 510MHz is that cost is low, and low in energy consumption, networking capability is strong.Based on this, the present invention proposes a kind of household electricity information acquisition system based on micro power radio communication agreement, in the present system, controlled end is used for gathering and stores the power consumption in each rate stage of each consumer, voltage, electric current, first equal, is more wirelessly uploaded to household electricity monitor terminal.Household electricity monitor terminal initiates the power consumption of each consumer of copy reading in a certain period, and preserves data a period of time.User can check the electricity of the same day or a certain period by monitor terminal, can make that electricity consumption user is very clear knows which electric appliance of family is many very easily like this, and that period electricity consumption is many, for electricity consumption user rational utilization of electricity, using electricity wisely provide foundation.
Household electricity information acquisition system based on micro power radio communication agreement forms primarily of two parts: household electricity monitor terminal, controlled terminal.Household electricity monitor terminal is made up of display chip, keyboard, control module and micropower wireless master module.Wherein, the hardware platform of control module adopts 32 bit processors, and software platform is linux kernel.Micropower wireless master module is that Si4432 radio frequency chip forms by 32 MCU and model, can also with RJ45 network interface, and RJ45 network interface can be connected with router.Controlled terminal primarily of computation chip, micropower is wireless forms from module.Wherein, micropower is wireless from module is that the radio frequency chip being Si4432 by 8 MCU and model is formed, and computation chip adopts model to be the computation chip of RN8207.Controlled terminal obtains the power information of answering consumer by computation chip: as voltage, electric current, first phase, power etc., these power informations are uploaded to household electricity monitor terminal by micropower is wireless from module.The wireless function also having forwarding data from module in addition.System chart as shown in Figure 1.
The household electricity information acquisition system course of work based on micro power radio communication agreement comprises:
1, the RJ45 network interface of the micropower wireless master module reserved opening of household electricity monitor terminal can be connected with home gateway.
2, controlled terminal is connected by insert row with household electrical appliance (as refrigerator, washing machine etc.), another controlled terminal is connected with one group of light fixture.
3, measurement point is set.
Write ID (length of 6 bytes) to controlled terminal, in family, power monitoring end arranges measurement point by keyboard, and these measurement points and the ID of controlled terminal are the relations mapped mutually.If controlled end ID is 0x06, measurement point 1 can be arranged at monitor terminal.After measurement point is provided with, selected to start networking by keyboard by monitoring client.
4, networking flow process: monitor terminal initiates networking, sends networking beacon by micropower wireless master module.Calculate the networking time according to networking scale, within the networking time, receive only controlled terminal forward networking beacon.After the networking time terminates, start neighbor table and the field intensity information table of collecting controlled terminal successively.After completing field intensity collection, communication path is configured to controlled terminal.All controlled terminals all represent that networking completes after configuration successful.Networking situation can be checked by keyboard at family's power monitoring end.If networking success, then show successfully on display chip; Otherwise then show failure, and demonstrate the controlled terminal not having to network.Storage networking ID after controlled terminal receives beacon also calculates oneself forwarding time slot, waits and then forwards beacon after oneself forwarding time slot.Within the networking time, only forward a networking beacon.
5, new controlled terminal is added: when monitor terminal keys in new controlled terminal measurement point, control module will inquire whether restart networking.Confirm networking, monitor terminal performs networking flow process.
6, read controlled terminal data: first determine at monitor terminal the data item wanting copy reading, if control module have sent read controlled end test point data command, order the inside sets the time of copy reading data.After these are provided with, monitor terminal will remove copy reading controlled terminal by what set.When read data completes, the copy reading time of data volume and data volume can be checked by monitor terminal.Monitor terminal can store and check at most the electricity consumption situation of the controlled end of nearly month.
7, controlled terminal data are thoroughly copied: what monitor terminal determined item except timing goes copy reading data, allows user understand electricity consumption situation.In addition, after user is chosen copied function by keyboard, control module sends copies controlled end test point data command, micropower wireless master module is according to the data item of thoroughly copying controlled end number of test points and will check according to command selection, to confirm and after waiting display screen display being copied into merit thoroughly, by keyboard decorrelation data item, the data message copied back is checked at place.
8, route data forwards: due to remote causes such as standoff distance between some controlled terminal and monitor terminal are far away or barrier is too much, communication link quality is not good.Therefore, each controlled terminal has routing function again.Monitor terminal the networking stage to controlled terminal dispense path time, micropower wireless master module comes to controlled terminal compute best paths according to the link information in the field intensity information table of each node.In communication process, when controlled terminal receives data, first-selection judges whether self is the destination node this time communicated, and if so, then controlled terminal responds the data received; If not, then the node address that controlled terminal obtains down hop by the communication path in communication data goes out data retransmission.
In sum, the present invention is owing to adopting micropower wireless communication technology, and this communication technology have employed the mode of Mesh networking, and therefore networking is simple and stable, and communication link quality is high.In addition because each node is with routing function, do not need when data need routing forwarding to reappose routing node, add network capacity.This communication mode is low for hardware performance requirements in addition, because this reducing research and development of products cost.
Above-described embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only the specific embodiment of the present invention; the protection domain be not intended to limit the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. based on a household electricity information acquisition system for micro power radio communication agreement, it is characterized in that, comprising: power monitoring terminal and controlled terminal; Wherein, described power monitoring terminal comprises keyboard, control module, micropower wireless master module; Described controlled terminal comprises: computation chip, micropower are wireless from module;
Described keyboard, for selecting controlled terminal and being set to measurement point; Instruction is sent to control module; Wherein, the ID phase mapping relations of described measurement point and controlled terminal;
Control module, for generating control command according to described instruction, and it is wireless from module that control command is sent to micropower by micropower wireless master module;
Described micropower wireless master module, for sending networking beacon, receive neighbor table information and the field intensity set information of controlled terminal, according to the neighbor table information of described controlled terminal and the id information of field intensity set information, measurement point and correspondence to controlled terminal configuration communication path, complete networking by mesh networking mode; Send control command; Accept power information and process;
Described computation chip, for Real-time Collection, the power information storing consumer;
Described micropower is wireless from module, for reception, routing forwarding networking beacon and control command, obtain neighbor table information and the field intensity set information of described controlled terminal according to described networking beacon, described neighbor table information and field intensity set information are forwarded to described micropower wireless master module; And according to control command, described power information is sent to described micropower wireless master module.
2. the system as claimed in claim 1, is characterized in that, described power monitoring terminal also comprises: display chip; Wherein, described display chip is used for the power information after the process of described micropower wireless master module to show.
3. the system as claimed in claim 1, is characterized in that, described control command comprises reading controlled end test point data command and thoroughly copies controlled end test point data command.
4. the system as claimed in claim 1, is characterized in that, generates and restart networking commands when described control module also sets up measurement point for keyboard described after networking completes.
5. the system as claimed in claim 1, is characterized in that, described micropower wireless master module and described micropower is wireless includes microprocessor and radio frequency chip from module.
6. system as claimed in claim 5, it is characterized in that, described micropower wireless master module also comprises RJ45 network interface.
7. the system as claimed in claim 1, is characterized in that, the working frequency points of described micropower wireless master module and the wireless working frequency points from module of described micropower are 470MHz ~ 510MHz.
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Address after: 100029 11 floor, LAN-STAR building, 19 North Third Ring Road, Chaoyang District, Beijing. Applicant after: BEIJING YUPONT ELECTRIC POWER TECHNOLOGY CO., LTD. Address before: 100045 Beijing Fuxing gate, No. 1 South Lane, Applicant before: Beijig Yupont Electric Power Technology Co., Ltd. |
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