CN105549485A - Household intelligent power utilization control terminal based on DSP - Google Patents
Household intelligent power utilization control terminal based on DSP Download PDFInfo
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- CN105549485A CN105549485A CN201610045000.2A CN201610045000A CN105549485A CN 105549485 A CN105549485 A CN 105549485A CN 201610045000 A CN201610045000 A CN 201610045000A CN 105549485 A CN105549485 A CN 105549485A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25341—Single chip programmable controller
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Abstract
The invention discloses a household intelligent power utilization control terminal based on a DSP, and the terminal comprises a central processing unit, an information unit, an energy unit, a measurement unit, and an interface unit. The central processing unit is connected with the information unit, the energy unit, and the measurement unit. The interface unit comprises a plug and a socket. The plug and the socket are connected with each other through a live line, a ground line, and a zero line. The socket is also connected with household electrical appliance equipment. The information unit comprises a wifi communication module and a Flash storage module. The wifi communication module is connected with a cloud server and a user mobile terminal APP through a household router. The central processing unit automatically controls the starting time and working duration of all household electric appliances under the condition of no impact on power utilization comfort of a user according to a calculation result of cloud service, the electricity price information and a preferential policy published by a power grid and a household electric appliance power utilization strategy formulated through an optimization algorithm, thereby achieving an effect of high-efficiency intelligent power utilization and reducing household energy consumption.
Description
Technical field
The present invention relates to a kind of intelligent grid, particularly relate to a kind of home intelligent power control terminal based on DSP, belong to energy monitor and distributed energy equipment control field.
Background technology
The guiding theory of intelligent grid is exactly the two-way interaction emphasized with user profile and electric energy; Encourage user to change traditional power mode, play an active part in operation of power networks, according to Spot Price adjustment power mode.Intelligent power is the important step that intelligent grid is built, and grid company, after having grasped the electricity consumption rule of user, can instruct user's efficient electricity consumption scientifically and rationally, reduce family's energy consumption, thus improve residential electricity consumption efficiency under the prerequisite affecting user's quality of life.
Now except minority household electrical appliances have except remote control function, most home appliance is still uncontrollable; In addition, even if remote controlled household electrical appliances, if need every day user pay close attention to electrical network issue interactive tactics carry out manual shift, the burden of this obvious adding users, thus be difficult to promote user participate in the theory of operation of power networks according to Spot Price adjustment power mode.
Summary of the invention
The object of the present invention is to provide a kind of home intelligent power control terminal based on DSP, support the plug and play of conventional home appliance, by user power utilization monitoring accurately, utilize cloud server analysis user's behavior pattern and formulate start-up time and the operating time that rational intelligent power consumption strategy controls each household electrical appliances automatically, the energy ?information bidirectional realizing electrical network and user is interactive, thus reach optimizing user power consumption efficiency, reduce the effect of family's energy consumption.
The object of the invention is achieved through the following technical solutions:
Based on a home intelligent power control terminal of DSP, it is characterized in that: comprise CPU (central processing unit), message unit, energy unit, measuring unit and interface unit; CPU (central processing unit) is connected with message unit, energy unit and measuring unit respectively; Interface unit is connected with energy unit and measuring unit respectively;
Described CPU (central processing unit) take DSP as the controller of core;
Described interface unit comprises plug and socket; Plug and socket is connected with zero line three line by live wire, ground wire; Plug is also connected with terminal block; Socket is also connected with home appliance;
Described message unit comprises wifi communication module and Flash memory module; Wifi communication module is connected with cloud server and customer mobile terminal APP respectively by home router; Flash memory module is connected with CPU (central processing unit);
Described energy unit comprises switch module and power transfer module; Switch module is formed primarily of relay, and is connected in series with the live wire of interface unit; On the live wire that power transfer module is connected in parallel on interface unit and zero line, power transfer module comprise resettable fuse, voltage dependent resistor (VDR), Jiao Liu ?DC conversion modules and LC filtering circuit; Jiao Liu ?two connection jaws of DC conversion modules be connected with the live wire of interface unit and zero line respectively Jiao Liu ?the circuit that is connected with zero line of DC conversion modules is connected in series resettable fuse, connect voltage dependent resistor (VDR) between live wire and zero line, voltage dependent resistor (VDR) is between resettable fuse and stream ?DC conversion modules; Jiao Liu ?two of DC conversion modules outlets connect with LC filtering circuit; LC filtering circuit comprises the first filter capacitor, the second filter capacitor, the 3rd filter capacitor and filter inductance; First filter capacitor, the second filter capacitor, the 3rd filter capacitor connecing, negativing ending grounding in parallel, anode in parallel exports+5V voltage, between the first filter capacitor and the anode of the second filter capacitor, be connected in series filter inductance;
Described measuring unit comprises Signal-regulated kinase and analog-to-digital conversion module; Signal-regulated kinase is made up of voltage signal conditioning circuit and current signal conditioning circuit; Analog-to-digital conversion module is connected between Signal-regulated kinase and CPU (central processing unit); Voltage signal conditioning circuit comprises the first electric resistance partial pressure resistance, the second divider resistance, the first differential amplifier, the first proportion resistor, the first filter resistance, the first filter capacitor, the first bypass filter capacitor and the 3rd bypass filter capacitor; The two ends of the first proportion resistor are connected with two pins of the first differential amplifier respectively; First divider resistance is connected with zero line with one end difference live wire of the second divider resistance, and the other end is parallel-connected to the first differential amplifier, and the output of the first divider resistance and the second divider resistance is linked into differential amplifier; First bypass filter capacitor and the 3rd bypass filter capacitor are respectively and be connected to the negative, positive power end of the first differential amplifier; One end of first filter resistance is connected with the first differential amplifier, and the other end and the first filter capacitor also connect, the output of parallel end connection voltage signal conditioning circuit, export and are directly connected with analog-to-digital conversion module;
Described current signal conditioning circuit comprises inspection leakage resistance, the second differential amplifier, the second proportion resistor, the second filter resistance, the second filter capacitor, the second bypass filter capacitor and the 4th bypass filter capacitor; Inspection leakage resistance is serially connected on zero line, and inspection leakage resistance two ends are connected respectively by wiring and the second differential amplifier two terminals, and the two ends of the second proportion resistor are connected with two pins of the second differential amplifier respectively; Second bypass filter capacitor and the 4th bypass filter capacitor are parallel to the negative, positive power end of the second differential amplifier respectively; One end of second filter resistance is connected with the second differential amplifier, and the other end and the second filter capacitor also connect, and parallel connected end is connected with the output of pressure signal conditioning circuit, and output is connected with analog-to-digital conversion module.
For realizing the object of the invention further, preferably, described CPU (central processing unit) take DSP as the controller of core, selects C2000 system digits signal processor TMS320F28035 chip or TMS320F28027 chip.
Preferably, described Wifi communication module selects the integrated communicaton module based on technical grade wireless communication chips CC3200.
Preferably, described Flash memory module is formed primarily of AT25FS040 chip, and Flash memory module is connected with CPU (central processing unit), adopts 3 line serial communication modes to connect, has the storage space of 4M.
Preferably, described switch module select to have 16A connecting-disconnecting function HFE20 ?1 ?5 ?1HST ?L1 relay.
Preferably, described analog-to-digital conversion module is formed primarily of integrated modulus conversion chip MAX1321.
Preferably, described first differential amplifier and the second differential amplifier adopt INA128 high-precision meter amplifier.
CPU (central processing unit) of the present invention is used for services request and the data processings such as response message, energy, measurement, optimization unit; Message unit is for storing local user's account information and electricity consumption data, and communicate with upper strata cloud server, realize the information such as Spot Price, electricity consumption policy uploading and accept electrical network issue of local data, can also realize carrying out with the APP being arranged on customer mobile terminal information interaction simultaneously; Energy unit, comprising the energy management of all kinds of household electrical appliance for realizing: the break-make of electricity consumption controls, overload protection operates, rationing the power supply controls; Measuring unit is used for zero line to access, live wire, the voltage of ground wire, current signal carry out Real-Time Monitoring, realizes basic using electric data collecting.
During normal work, described interface unit is for building the connection of home wall socket or terminal block and home appliance; Described CPU (central processing unit) is used for services request and the data processings such as response message, energy, measurement, optimization unit; Described message unit is for storing local user's account information and electricity consumption data, and by home router and upper strata cloud server carry out communicating realize local data upload and receive the electricity price information and optimization policy that electrical network issues, can also realize carrying out information interaction with the APP being arranged on customer mobile terminal simultaneously; Described energy unit, comprising the energy management of all kinds of household electrical appliance for realizing: the break-make of electricity consumption controls, overload protection operates, rationing the power supply controls; Described measuring unit is used for carrying out Real-Time Monitoring to voltage, the current signal of access, realizes basic using electric data collecting.
Relative to prior art, tool of the present invention has the following advantages:
1) the home intelligent power control terminal based on DSP of the present invention has measurement, switch control rule, the functions such as radio communication, household electrical appliances can be collected exactly and establish the information such as electric parameter and user power utilization situation, by cloud server analyze user power utilization behavior pattern and in conjunction with electrical network issue electricity price information and preferential policy formulate rational intelligent power consumption strategy, realize the automatic control of household electrical appliances start-up time and operating time, thus solve the problem that user needs manual control household electrical appliances, greatly facilitate the policy that user participates in demanding side of the electrical power net response, and then can effectively improve user power utilization efficiency, reduce family's energy consumption, realize the object of economic electricity consumption.
2) the built-in integrated form power transfer module of the home intelligent power control terminal based on DSP of the present invention, directly can obtain electric energy and be supplied to whole terminal from 220V civil power.This integrated form power transfer module has the advantages that volume is little, cost is low, and adopts switching regulator to hand over stream ?direct current translative mode, under lower power consumption, 220V civil power can be converted to 5V direct current.Power transfer module adopts voltage dependent resistor (VDR) and thermistor to achieve overvoltage and overcurrent protection simultaneously simultaneously, and then ensures the safety in utilization of the whole home intelligent power control terminal based on DSP.
3) in order to save space, home intelligent power control terminal based on DSP of the present invention adopts the voltage acquisition mode of direct electric resistance partial pressure type, and use integrated differential operational amplifier to replace traditional calculus of differences circuit, thus the device decreased in circuit, be equivalent to the noise source decreased in circuitry for signal measurement, thus ensure the high precision of signal measurement.In addition, conventional electric power metering outfit is by integrating metrology chip measuring electric quantity, this mode is subject to the restriction of computation chip function generally can only measure basic electricity can not realize harmonic measure flexibly as voltage, electric current, power, electric energy etc., and signal condition mode of the present invention then can realize the measurement of multiple electricity.
Accompanying drawing explanation
Fig. 1 is the one-piece construction schematic diagram of the home intelligent power control terminal based on DSP of the present invention.
To be Fig. 1 realize example schematic based on the home intelligent power control terminal of DSP to Fig. 2.
Fig. 3 is power transfer module circuit diagram in Fig. 2.
Fig. 4 is voltage signal conditioning circuit figure in Fig. 2.
Embodiment
For understanding the present invention better, below in conjunction with drawings and Examples, the invention will be further described, but embodiments of the present invention are not limit so.
As shown in Figure 1, 2, a kind of home intelligent power control terminal based on DSP, comprises CPU (central processing unit) 1, message unit 2, energy unit 3, measuring unit 4 and interface unit 5; CPU (central processing unit) 1 is connected with message unit 2, energy unit 3 and measuring unit 4 respectively; Interface unit 5 is connected with energy unit 3 and measuring unit 4 respectively;
CPU (central processing unit) 1 take DSP as the controller of core, the C2000 system digits signal processor TMS320F28035 chip of preferred TI company.This chip has the dominant frequency of the highest 60MHz, and sheet carries 64K internal memory and 16K buffer memory, can be used for the exploitation compared with large project; This chip other dsp chips relatively, have the advantages that volume is little, function peripheral hardware is complete, are comparatively applicable to application of the present invention simultaneously.CPU (central processing unit) 1 is connected with message unit 2, energy unit 3, measuring unit 4 simultaneously, for the normal work of cooperation control unit, responds the services request of each unit simultaneously.
Interface unit 5 comprises plug and socket; Plug and socket is connected with zero line three line by live wire, ground wire; Plug is also connected with terminal block; Socket is also connected with home appliance; Interface unit 5 for building home wall socket or terminal block, with the connection of home appliance.
Message unit 2 comprises wifi communication module 21 and Flash memory module 22; The technical grade CC3200 wireless-communication chipset of the preferred TI company of Wifi communication module 21 becomes communication module.Wifi communication module 21 realizes data by the mode of asynchronous serial port and CPU (central processing unit) 1 and transmits, Wifi communication module 21 is connected with cloud server 7 and customer mobile terminal APP8 respectively by home router 6, utilize the mode of wifi Wireless Networking and cloud service to set up data cube computation, the agreement of wherein communication is HTTP.Flash memory module 22 is formed primarily of AT25FS040 chip, Flash memory module 22 is connected with CPU (central processing unit) 1, adopt 3 line serial communication modes, there is the storage space of 4M, be mainly used to store local user account, router logs in and user power utilization data etc. in seclected time section.
Energy unit 3 comprises switch module 31 and power transfer module 32; Switch module 31 is formed primarily of relay, and is connected in series with the live wire of interface unit 5, controls, overload protection operates, rationing the power supply controls for the break-make realizing electricity consumption; Switch module 31 select have 16A connecting-disconnecting function HFE20 ?1 ?5 ?1HST ?L1 relay, this relay has feature small, low in energy consumption, is conducive to reducing volume of the present invention and power consumption.Power transfer module 32 is applicable to the described DC voltage based on the home intelligent power control terminal of DSP for being converted to by the line voltage of access, is the electric power system of whole terminal.
As shown in Figure 3.On the live wire L that power transfer module is connected in parallel on interface unit 5 and zero line N, power transfer module 32 comprise resettable fuse R11, voltage dependent resistor (VDR) R12, Jiao Liu ?direct current (AC/DC) modular converter P1, LC filtering circuit; Jiao Liu ?two connection jaws of DC conversion modules P1 be connected with the live wire L of interface unit 5 and zero line N respectively Jiao Liu ?the circuit that is connected with zero line N of DC conversion modules P1 is connected in series resettable fuse R11, meet voltage dependent resistor (VDR) R12 between live wire L and zero line N, voltage dependent resistor (VDR) R12 is between resettable fuse R11 and stream ?DC conversion modules P1; Jiao Liu ?two of DC conversion modules P1 outlets connect with LC filtering circuit; LC filtering circuit comprises the first filter capacitor C7, the second filter capacitor C8, the 3rd filter capacitor C9 and filter inductance L2; First filter capacitor C7, the second filter capacitor C8, the 3rd filter capacitor C9 connecing, negativing ending grounding in parallel, anode in parallel exports+5V voltage, between the first filter capacitor C7 and the anode of the second filter capacitor C8, be connected in series filter inductance L2; Wherein resettable fuse R11 is used for short-circuit protection; Voltage dependent resistor (VDR) R12 is used for overvoltage protection; Jiao Liu ?DC conversion modules P1 be used for convert the line voltage of interchange to 5V direct supply; First filter capacitor C7, the second filter capacitor C8, the 3rd filter capacitor C9, filter inductance L2 form LC filtering circuit together, by the ripple elimination of DC voltage.
Measuring unit 4 comprises Signal-regulated kinase 41 and analog-to-digital conversion module 42; Signal-regulated kinase 41 is made up of voltage signal conditioning circuit and current signal conditioning circuit, for converting large voltage, big current signal to small voltage signal.Analog-to-digital conversion module 42 is connected between Signal-regulated kinase 41 and CPU (central processing unit) 1, and the simulating signal for being exported by Signal-regulated kinase 41 converts digital signal to and is transferred to CPU (central processing unit) 1 carries out data analysis.Analog-to-digital conversion module 42 is formed primarily of integrated modulus conversion chip MAX1321, and this chip is 14 4 passage ADC, has+5V and powers, and the features such as the input of ± 5V bipolarity, ± 16.5 input protections, greatly simplifie the design of analog to digital conversion circuit.
In order to the structure of more clear signal conditioning module, be described with Fig. 4 below.As shown in Figure 4, voltage signal conditioning circuit comprises: the first electric resistance partial pressure resistance R1, the second divider resistance R2, the first differential amplifier U1, the first proportion resistor RG1, the first filter resistance Ro1, the first filter capacitor Co1, the first bypass filter capacitor C1 and the 3rd bypass filter capacitor C3; The two ends of the first proportion resistor RG1 are connected with two pins of the first differential amplifier U1 respectively; First divider resistance R1 is connected with zero line N with one end difference live wire L of the second divider resistance R2, the other end is parallel-connected to the first differential amplifier U1, for large voltage transitions is become small voltage signal, the output of the first divider resistance R1 and the second divider resistance R2 dividing potential drop is linked into differential amplifier U1, to realize the amplification of small-signal; First bypass filter capacitor C1 and the 3rd bypass filter capacitor C3 respectively and be connected to the negative, positive power end of the first differential amplifier U1; One end of first filter resistance Ro1 is connected with the first differential amplifier U1, and the other end and the first filter capacitor Co1 also connect, the output Uo of parallel end connection voltage signal conditioning circuit, export and are directly connected with analog-to-digital conversion module 42; First filter resistance Ro1 and the first filter capacitor Co1 forms a single order RC low-pass filter, for the higher hamonic wave that the conditioning of filtering voltage signal exports; Uo represents the output of voltage signal conditioning circuit, and this signal is directly connected on analog-to-digital conversion module 42.
Current signal conditioning circuit comprises inspection leakage resistance R3, the second differential amplifier U2, the second proportion resistor RG2, the second filter resistance Ro2, the second filter capacitor Co2, the second bypass filter capacitor C2 and the 4th bypass filter capacitor C4.Inspection leakage resistance R3 is serially connected on zero line N, and inspection leakage resistance R3 two ends are connected respectively by wiring and the second differential amplifier U2 two terminals, current signal are converted to small voltage signal, and is linked into differential amplifier U2 and realizes signal amplification; The two ends of the second proportion resistor RG2 are connected with two pins of the second differential amplifier U2 respectively; Second bypass filter capacitor C2 and the 4th bypass filter capacitor C4 is parallel to the negative, positive power end of the second differential amplifier U2 respectively; Shunt capacitance is used for the power supply noise of filtering differential amplifier.One end of second filter resistance Ro2 is connected with the second differential amplifier U2, and the other end and the second filter capacitor Co2 also connect, and parallel connected end is connected with the output of pressure signal conditioning circuit, and output is connected with analog-to-digital conversion module 42; Second filter resistance Ro2 and the second filter capacitor Co2 forms a single order RC low-pass filter, for the higher hamonic wave that the conditioning of filtering current signal exports.
CPU (central processing unit) 1 is for services request and data processings such as response message, energy, measurement, optimization unit; Message unit 2 is for storing local user's account information and electricity consumption data, and communicate with upper strata cloud server, realize the information such as Spot Price, electricity consumption policy uploading and accept electrical network issue of local data, can also realize carrying out with the APP being arranged on customer mobile terminal information interaction simultaneously; Energy unit 3, comprising the energy management of all kinds of household electrical appliance for realizing: the break-make of electricity consumption controls, overload protection operates, rationing the power supply controls; Measuring unit 4 carries out Real-Time Monitoring for the zero line to access, live wire, the voltage of ground wire, current signal, realizes basic using electric data collecting.
After measuring unit 4 completes the data acquisition of one-period, the calculation services request of CPU (central processing unit) 1 response measurement unit 4, utilize the digital signal processing algorithms such as the calculating of FIR low-pass digital filter, effective value, whole phase FFT to calculate collecting data analysis, thus obtain the basic electricity situation of the home appliance accessed; In addition, when described measuring unit 4 monitor home appliance be short-circuited fault time, also can immediately to described central authorities process Unit 1 give a warning, CPU (central processing unit) 1 after receiving warning then immediately control energy unit 3 carry out power operation.When collection is after data analysis has calculated, CPU (central processing unit) 1 can upload real-time power information to cloud server by control information unit 2; Simultaneously when message unit 2 receives the information of cloud server transmission, then send information service request to CPU (central processing unit) 1, CPU (central processing unit) 1 can receive the information that cloud server 7 is carried after responding, as home appliance type analysis result, electrical network electricity price information and preferential policy user power utilization BMAT result etc.; After household electrical appliances device type is locked, CPU (central processing unit) 1 starts automatic home wiring control pattern, realizes the energy management of home appliance by controlling energy unit 3.
After working on power, measuring unit 4 carries out Real-Time Monitoring to the conventional home appliance of access and resolves the information such as waveform, frequency spectrum, power of voltage, current signal, then by described message unit, the database that these information upload to cloud server is compared, automatically identify the type of institute's access appliance; Cloud server 7 is by message unit described in the result feedback of identification and store.After household electrical appliances device type is locked, described CPU (central processing unit) starts to perform automatic home wiring control task: utilize described measuring unit to monitor the information such as electric power, electricity consumption time of the home appliance of access, resolve user power utilization behavior pattern according to corresponding analytical algorithm; According to the electricity consumption behavioural habits of user, the electricity price that the electrical network received in conjunction with described message unit is issued and preferential policy, under the prerequisite not affecting user power utilization comfort level, formulate the electricity consumption strategy of each access appliance and utilize described energy unit automatically to control start-up time and the operating time of each household electrical appliances.
Home intelligent power control terminal based on DSP of the present invention, first pass through the home appliance accessed as air-conditioning, refrigerator, water heater, washing machines etc. carry out Real-Time Monitoring, collection comprises voltage, current effective value, power, power factor, harmonic wave, the basic electricity information such as momentary current waveform, and these data upload are carried out united analysis calculating to cloud server then, finally result of calculation is turned back to described intelligent power control terminal, the electricity price information that described CPU (central processing unit) is issued according to the result of calculation of cloud service and electrical network and preferential policy, in conjunction with the household electrical appliances electricity consumption strategy that the optimized algorithm of specialty is formulated, automatically start-up time and the operating time of each household electrical appliances is controlled under the prerequisite not affecting user power utilization comfort level, thus reach high efficiency smart electricity consumption, reduce the effects such as family's energy consumption.
Claims (7)
1. based on a home intelligent power control terminal of DSP, it is characterized in that: comprise CPU (central processing unit), message unit, energy unit, measuring unit and interface unit; CPU (central processing unit) is connected with message unit, energy unit and measuring unit respectively; Interface unit is connected with energy unit and measuring unit respectively;
Described CPU (central processing unit) take DSP as the controller of core;
Described interface unit comprises plug and socket; Plug and socket is connected with zero line three line by live wire, ground wire; Plug is also connected with terminal block; Socket is also connected with home appliance;
Described message unit comprises wifi communication module and Flash memory module; Wifi communication module is connected with cloud server and customer mobile terminal APP respectively by home router; Flash memory module is connected with CPU (central processing unit);
Described energy unit comprises switch module and power transfer module; Switch module is formed primarily of relay, and is connected in series with the live wire of interface unit; On the live wire that power transfer module is connected in parallel on interface unit and zero line, power transfer module comprises resettable fuse, voltage dependent resistor (VDR), AC-DC modular converter and LC filtering circuit; Two connection jaws of AC-DC modular converter are connected with the live wire of interface unit and zero line respectively, the circuit that AC-DC modular converter is connected with zero line is connected in series resettable fuse, connect voltage dependent resistor (VDR) between live wire and zero line, voltage dependent resistor (VDR) is between resettable fuse and stream-DC conversion modules; Two of AC-DC modular converter export with LC filtering circuit and connect; LC filtering circuit comprises the first filter capacitor, the second filter capacitor, the 3rd filter capacitor and filter inductance; First filter capacitor, the second filter capacitor, the 3rd filter capacitor connecing, negativing ending grounding in parallel, anode in parallel exports+5V voltage, between the first filter capacitor and the anode of the second filter capacitor, be connected in series filter inductance;
Described measuring unit comprises Signal-regulated kinase and analog-to-digital conversion module; Signal-regulated kinase is made up of voltage signal conditioning circuit and current signal conditioning circuit; Analog-to-digital conversion module is connected between Signal-regulated kinase and CPU (central processing unit); Voltage signal conditioning circuit comprises the first electric resistance partial pressure resistance, the second divider resistance, the first differential amplifier, the first proportion resistor, the first filter resistance, the first filter capacitor, the first bypass filter capacitor and the 3rd bypass filter capacitor; The two ends of the first proportion resistor are connected with two pins of the first differential amplifier respectively; First divider resistance is connected with zero line with one end difference live wire of the second divider resistance, and the other end is parallel-connected to the first differential amplifier, and the output of the first divider resistance and the second divider resistance is linked into differential amplifier; First bypass filter capacitor and the 3rd bypass filter capacitor are respectively and be connected to the negative, positive power end of the first differential amplifier; One end of first filter resistance is connected with the first differential amplifier, and the other end and the first filter capacitor also connect, the output of parallel end connection voltage signal conditioning circuit, export and are directly connected with analog-to-digital conversion module;
Described current signal conditioning circuit comprises inspection leakage resistance, the second differential amplifier, the second proportion resistor, the second filter resistance, the second filter capacitor, the second bypass filter capacitor and the 4th bypass filter capacitor; Inspection leakage resistance is serially connected on zero line, and inspection leakage resistance two ends are connected respectively by wiring and the second differential amplifier two terminals, and the two ends of the second proportion resistor are connected with two pins of the second differential amplifier respectively; Second bypass filter capacitor and the 4th bypass filter capacitor are parallel to the negative, positive power end of the second differential amplifier respectively; One end of second filter resistance is connected with the second differential amplifier, and the other end and the second filter capacitor also connect, and parallel connected end is connected with the output of pressure signal conditioning circuit, and output is connected with analog-to-digital conversion module.
2. the home intelligent power control terminal based on DSP according to claim 1, it is characterized in that: described CPU (central processing unit) take DSP as the controller of core, selects C2000 system digits signal processor TMS320F28035 chip or TMS320F28027 chip.
3. the home intelligent power control terminal based on DSP according to claim 1, is characterized in that: described Wifi communication module selects the integrated communicaton module based on technical grade wireless communication chips CC3200.
4. the home intelligent power control terminal based on DSP according to claim 1, it is characterized in that: described Flash memory module is formed primarily of AT25FS040 chip, Flash memory module is connected with CPU (central processing unit), adopts 3 line serial communication modes to connect, has the storage space of 4M.
5. the home intelligent power control terminal based on DSP according to claim 1, is characterized in that: described switch module selects the HFE20-1-5-1HST-L1 relay with 16A connecting-disconnecting function.
6. the home intelligent power control terminal based on DSP according to claim 1, is characterized in that: described analog-to-digital conversion module is formed primarily of integrated modulus conversion chip MAX1321.
7. the home intelligent power control terminal based on DSP according to claim 1, is characterized in that: described first differential amplifier and the second differential amplifier adopt INA128 high-precision meter amplifier.
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| CN106229766A (en) * | 2016-08-18 | 2016-12-14 | 谢亮成 | A kind of Intelligent wall switch socket controlling system and a kind of Intelligent wall switch socket |
| CN108233529A (en) * | 2016-12-21 | 2018-06-29 | 上海佳岚智能科技有限公司 | Intelligent remote power monitoring modularization apparatus and system |
| CN109066993A (en) * | 2018-09-17 | 2018-12-21 | 中山长星光电科技有限公司 | security switch system |
| CN110046316A (en) * | 2019-03-08 | 2019-07-23 | 佛山市云米电器科技有限公司 | A kind of community user family data analysis method and system |
| CN110989431A (en) * | 2019-11-26 | 2020-04-10 | 福建省昊彤网络科技有限公司 | Remote power utilization control system under condition of actively closing network |
| CN113467291A (en) * | 2021-06-11 | 2021-10-01 | 广西大学 | Energy-saving building concentrator control method suitable for bidirectional interaction |
| CN113835351A (en) * | 2021-09-27 | 2021-12-24 | 深圳供电局有限公司 | Intelligent household power utilization optimization control system and method based on multi-terminal cooperative architecture |
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| CN110046316B (en) * | 2019-03-08 | 2020-12-29 | 佛山市云米电器科技有限公司 | Method and system for analyzing family data of cell users |
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