The system of meter parameter is set by wireless communicationTechnical field
The present invention relates to electric instrument parameter setting technical fields, and instrument is arranged by wireless communication more particularly to one kindThe system of parameter.
Background technique
Currently, the parameter setting of conventional electric power instrument is all by pressing instrument certainly in industry or civilian electricity consumption occasionThe key of body, and set interface real-time display is realized on the display screen of instrument, it is easy to operate.But such behaviourMaking mode also has strict requirements to the installation site of instrument, it is necessary in staff's arm can be within opereating specification.Such asFruit instrument is installed aloft can then bring certain operational risk or switch cabinet etc. cumbersome to staff in perhaps cabinetStep.
Summary of the invention
The present invention is in view of the problems of the existing technology and insufficient, provides one kind and meter parameter is arranged by wireless communicationSystem.
The present invention is to solve above-mentioned technical problem by following technical proposals:
The present invention provides a kind of system that meter parameter is arranged by wireless communication, it is characterized in that comprising metering mouldBlock, WIFI module, liquid crystal driver module, liquid crystal display and mobile terminal, the metering module, liquid crystal driver module and liquid crystalDisplay screen is sequentially connected, and the metering module is connected with WIFI module；
The order that the mobile terminal is sent passes to metering module by WIFI module, to complete setting for meter parameterSet, setting bound of parameter face not only show on mobile terminals, also can simultaneous display on liquid crystal display.
Preferably, the metering module include RN7211 metering chip, capacitor C11, capacitor C8, capacitor C13, capacitor C10,Capacitor C12, capacitor C14, capacitor C4, capacitor C5, resistance R15, capacitor C2, capacitor C3, reactance X1 and resistance R18, it is describedThe first port of RN7211 metering chip pass through respectively capacitor C11 and capacitor C8 ground connection, the tenth port pass through respectively capacitor C13 andCapacitor C10 ground connection, the tenth Single port pass through capacitor C12 and capacitor C14 ground connection, the ungrounded termination power of capacitor C14, institute respectivelyThe 24th port for stating RN7211 metering chip passes through capacitor C4 and capacitor C5 ground connection respectively, the RN7211 metering chip48th port is grounded by capacitor C3, the 49th port is grounded by capacitor C2, and the of the RN7211 metering chipIt is electrically connected resistance R15 and reactance X1 between 48 ports and the 49th port, the of the RN7211 metering chip56 ports connect power supply by resistance R18.
Preferably, the liquid crystal driver module includes TM1621 driving chip, resistance R17, resistance R16, resistance R31, electricityHold C40 and resistance R67, the first port of the TM1621 driving chip connects power supply by resistance R17, second port passes through resistanceR16 connects power supply, and the third port of the TM1621 driving chip connects power supply by resistance R31, is also grounded by capacitor C40, instituteThe fifth port for stating TM1621 driving chip connects power supply by resistance R67, the 6th port directly connects power supply.
Preferably, settable meter parameter is divided into three categories: basic setup, signal setting and communications setting are set substantiallyIt sets including circulation display, backlight time, out-of-limit flashing and instrument password, signal setting includes the mode of connection, primary current and twoPrimary current, communications setting include meter address, baud rate and data format.
On the basis of common knowledge of the art, above-mentioned each optimum condition, can any combination to get each preferable reality of the present inventionExample.
The positive effect of the present invention is that:
It is this that the mode of meter parameter is set by wireless communication, instrument can be set in the case where not contacting instrumentParameter reduce the operation of staff climbed at the scene that some instrument installation sites are higher, greatly improve instrumentThe convenience of table setting, also improves the safety of work to a certain extent.
Detailed description of the invention
Fig. 1 is the structural block diagram of the system that meter parameter is arranged by wireless communication of present pre-ferred embodiments.
Fig. 2 is the circuit diagram of the metering module of present pre-ferred embodiments.
Fig. 3 is the circuit diagram of the liquid crystal driver module of present pre-ferred embodiments.
Fig. 4 is the schematic diagram of the settable meter parameter of present pre-ferred embodiments.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present inventionIn attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment isA part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the artEvery other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
As shown in Figure 1, the present embodiment provides a kind of systems that meter parameter is arranged by wireless communication comprising metering mouldBlock 1, WIFI module 2, liquid crystal driver module 3, liquid crystal display 4 and mobile terminal 5 (such as cell phone application), the metering module1, liquid crystal driver module 3 and liquid crystal display 4 are sequentially connected, and the metering module 1 is connected with WIFI module 2.
The order that the mobile terminal is sent passes to metering module 1 by WIFI module 2, to complete setting for meter parameterSet, setting bound of parameter face not only show on mobile terminals, also can simultaneous display on liquid crystal display 4.
Wherein, as shown in Fig. 2, the metering module include RN7211 metering chip, capacitor C11, capacitor C8, capacitor C13,Capacitor C10, capacitor C12, capacitor C14, capacitor C4, capacitor C5, resistance R15, capacitor C2, capacitor C3, reactance X1 and resistance R18,The first port of the RN7211 metering chip passes through capacitor C11 and capacitor C8 ground connection respectively, the tenth port passes through capacitor respectivelyC13 and capacitor C10 ground connection, the tenth Single port pass through capacitor C12 and capacitor C14 ground connection, the ungrounded termination electricity of capacitor C14 respectivelySource, the 24th port of the RN7211 metering chip pass through capacitor C4 and capacitor C5 ground connection, the RN7211 metering respectively48th port of chip is grounded by capacitor C3, the 49th port is grounded by capacitor C2, the RN7211 metering coreResistance R15 and reactance X1, the RN7211 metering core are electrically connected between 48th port of piece and the 49th port56th port of piece connects power supply by resistance R18.
As shown in figure 3, the liquid crystal driver module include TM1621 driving chip, resistance R17, resistance R16, resistance R31,Capacitor C40 and resistance R67, the first port of the TM1621 driving chip connects power supply by resistance R17, second port passes through electricityResistance R16 connects power supply, and the third port of the TM1621 driving chip connects power supply by resistance R31, is also grounded by capacitor C40,The fifth port of the TM1621 driving chip connects power supply by resistance R67, the 6th port directly connects power supply.
As shown in figure 4, settable meter parameter is divided into three categories: basic setup, signal setting and communications setting, substantiallySetting include circulation display, the backlight time, it is out-of-limit flashing and instrument password, signal setting including the mode of connection, primary current andSecondary current, communications setting include meter address, baud rate and data format.
Lower mask body is introduced the invention and the course of work of meter parameter is arranged using wireless communication:
Open cell phone application 5, scanning is located at the two dimensional code at meter case, and mobile phone will open hot spot, instrument automatically byWIFI module 2 connects mobile phone hot spot, completes connection.The parameter setting interface for entering instrument in cell phone application 5, selects in Fig. 3The parameter for needing to be arranged, display interface are not only shown at 5 end of cell phone application, can also be synchronized on the liquid crystal display 4 of instrument；ReallyRecognize after needing the parameter being arranged to be set, exits the set interface at 5 end of cell phone application, closing hand phone hot spot, disconnection and instrumentConnection.
Although specific embodiments of the present invention have been described above, it will be appreciated by those of skill in the art that theseIt is merely illustrative of, protection scope of the present invention is defined by the appended claims.Those skilled in the art is not carrying on the backUnder the premise of from the principle and substance of the present invention, many changes and modifications may be made, but these are changedProtection scope of the present invention is each fallen with modification.