CN108834278A - A kind of wireless street lamp micro-base station controller - Google Patents
A kind of wireless street lamp micro-base station controller Download PDFInfo
- Publication number
- CN108834278A CN108834278A CN201810702484.2A CN201810702484A CN108834278A CN 108834278 A CN108834278 A CN 108834278A CN 201810702484 A CN201810702484 A CN 201810702484A CN 108834278 A CN108834278 A CN 108834278A
- Authority
- CN
- China
- Prior art keywords
- circuit
- voltage
- current
- module
- street lamp
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/20—Responsive to malfunctions or to light source life; for protection
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/72—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The present invention relates to a kind of wireless street lamp micro-base station controller, which includes voltage and current sample module, processor, power supply module, wireless communication module, light modulation output module and relay driving module.Controller of the invention can be realized the switch control of illuminator, the alarm for failure of turning off the light, large-power lamp light modulation, it is the high reliability that ensure that equipment by simple circuit design, simplifies the technological process of production, reduces device element cost and production cost again, while the detection of the power supply for electrical equipment of carry and equipment fault on street lamp post can also be controlled.
Description
Technical field
The present invention relates to wisdom illumination, smart city field, especially a kind of wireless street lamp micro-base station of sine wave sampling
Controller.
Background technique
In road lighting field, most road lamp carries out circuit switching control using A.C. contactor, by fixed
When time control equipment control contactor to street lamp loop power realize road lamp power switch, the method for controlling street lamps i.e. cannot
The independent switch control for realizing street lamp can not realize the brightness adjustment control of street lamp, while it is former to occur turning off the light to the street lamp in circuit
Barrier can not be found in time, so that road lamp maintenance needs to put into a large amount of manpower and material resources.
In the field of home lighting with industrial park, illumination of plant building field, most of lamps and lanterns are using wall switch, switch knob
Lamp carry out manual switch, often occur in use personnel leave rear lighting lamp tool be still in lighting lamp state, that is, waste
Electric energy, and reduce illuminator service life.
There is the manufacturer of part on Vehicles Collected from Market to realize the automation switch control of street lamp, though the single-lamp controller of design
It so can be realized the switch control of the illuminator of automation and the fault detection of lamps and lanterns, but these products nearly all use electricity
Can metering chip detect illuminator power consumption, judged according to lamps and lanterns power consumption lamps and lanterns whether failure；These electric energy meters
It is complicated to measure the usual peripheral circuit of chip, it is expensive, cause controller failure point more, is easily damaged；Simultaneously for electrical energy measurement
The parameters such as electric current, voltage, power, electric energy, when production, each equipment required to carry out individually measuring correction, and rectified an instrument
Expensive, production technology is smooth complicated, causes production cost high；Some electric energy computation chip peripheral circuits are using isolation
Current transformer and voltage transformer carry out electrical energy parameter sampling, but the usual volume of this single-lamp controller is larger, and electricity is isolated
Current transformer and voltage transformer are indispensable；Some electric energy computation chip peripheral circuits carry out electricity using non-isolated bleeder circuit
Energy parameter sampling, but this single-lamp controller is not due to having using isolation circuit, it is easy to cause its own by the sense on route
Answer that thunder and lightning is broken or the high-pressure electrostatic on route, surge pulse group are broken, this kind of single-lamp controller needs additionally when in use
The expensive lightning-protection module of configuration just can guarantee its safe and reliable work.
Currently marketed illuminator usually to single-lamp controller do not need so complicated so high-precision electric current,
The sampling of the parameters such as voltage, active power, reactive power, apparent energy, power factor (PF), electric energy statistics, mostly just needs out
Control and breakdown judge of turning off the light are closed, is that also it is only necessary to a dimming functions for large-power lamp, from circuit design
Reliability perspectives set out, and single-lamp controller circuit is simpler, and failure rate is lower.
The carry micro- station of numerous electrical equipments such as camera, 4G, 5G, traffic radar etc. on current street lamp post, these set
The standby power supply power supply for all borrowing street lamp, when in order to guarantee power supply on equipment daytime, street lamp bulb is in close state, it usually needs is changed
It individually is laid with service cable to electrical equipment, construction work amount is huge.These defects mentioned above have become urgent need solution
Certainly the technical issues of.
Summary of the invention
In order to solve the above problem in the prior art, the present invention devises a kind of simply wireless street lamp micro-base station of circuit
Controller can be realized the switch control of illuminator, the alarm for failure of turning off the light, large-power lamp light modulation, pass through simple electricity
Road design ensure that the high reliability of equipment, simplify the technological process of production, reduce device element cost again and be produced into
This, while the detection of the power supply for electrical equipment of carry and equipment fault on street lamp post can also be controlled.
Present invention employs following technical solutions：
A kind of wireless street lamp micro-base station controller, the controller include voltage and current sample module, processor, power supply
Power supply module, wireless communication module, light modulation output module and relay driving module, it is characterised in that：
In voltage and current sample module include current sampling circuit, voltage sampling circuit and sampled reference source circuit,
Current sampling circuit and voltage sampling circuit are connected with processor respectively；
Relay driving module is connected with processor, the control signal from processor is received, for controlling street lamp lamp
The switch lamp of tool；
Output module is dimmed, is connected with processor, the pulse that the 1KHz duty ratio from processor is 0-100% is received
Bandwidth modulation signals；
Processor for sending and receiving for instruction and data, and controls the switch that relay driving module realizes street lamp
Lamp control, control light modulation output module realize 0-10V light modulation output；
In power supply module include AC/DC12V power circuit, DC/DC5V power circuit, DC/DC3.3V power circuit,
Battery charge-discharge circuit and battery pack, the power supply module provide respectively tri- kinds of direct currents of DC12V, DC5V, DC3.3V with
To module for power supply each in controller.
Further, there is voltage sampling circuit, two-way current sample electricity all the way in the voltage and current sample module
Road and a load sampled reference source；There is two-way relay drive circuit in the relay driving module；The light modulation
In output module there is two-way to dim output circuit.
Further, the current sampling circuit uses the turn ratio 1000:1 current transformer is turned high current is loaded
It is changed to low current, current signal is then converted into voltage signal；The voltage sampling circuit uses 1:1 voltage transformer,
Then the resistance of one 200K of series connection carries out voltage sample；The sampled reference source circuit uses TL431 chip to generate one
Then the voltage of 2.495V obtains the reference voltage Vref of a 1V by electric resistance partial pressure.
Further, there is protection TVS pipe in the voltage and current sample module.
Further, AC/DC12V power circuit connection AC220V exchange input, and exchange input is converted into DC12V/
12W direct current output is to DC/DC5V power circuit and battery charge-discharge circuit.
Battery charge-discharge circuit is separately connected AC/DC12V power circuit and battery pack, which will access
DC12V direct current by conversion after give battery pack charging；
DC/DC5V power circuit connects AC/DC12V power circuit, which uses MP1584 power supply pipe
It manages chip and DC12V direct current is converted into DC5V direct current；
DC/DC3.3V power circuit connects DC/DC5V power circuit, and the DC/DC3.3V power circuit is using HT7133 electricity
Source control chip, for DC5V direct current to be converted to DC3.3V direct current.
The beneficial effects of the invention are as follows：It can be realized the switch control of illuminator, the alarm for failure of turning off the light, high-power lamp
Tool light modulation by simple circuit design is the high reliability that ensure that equipment, simplifies the technological process of production, reduces and set again
Standby device cost and production cost, while the inspection of the power supply for electrical equipment of carry and equipment fault on street lamp post can also be controlled
It surveys.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings：
Fig. 1 is the structural schematic diagram of controller；
Fig. 2 is the circuit diagram for dimming output module；
Fig. 3 is the circuit diagram of voltage and current sample module；
Fig. 4 is the circuit diagram of relay driving module；
Fig. 5 is the circuit diagram of power supply module；
Fig. 6 is the circuit diagram of processor and wireless communication module.
The invention will be further described with reference to the accompanying drawings and embodiments.
Specific embodiment
Present invention is further described in detail With reference to embodiment：
Fig. 1 is the structural schematic diagram of controller.Wireless street lamp micro-base station controller (hereinafter referred to as " control of the invention
Device ") in include voltage and current sample module, processor, power supply module, wireless communication module, light modulation output module with
And relay driving module.
In power supply module include AC/DC12V power circuit, DC/DC5V power circuit, DC/DC3.3V power circuit,
Battery charge-discharge circuit and battery pack；Wherein AC/DC12V power circuit connection AC220V exchange input, and exchange is inputted
DC12V/12W direct current output is converted into DC/DC5V power circuit and battery charge-discharge circuit；Battery charge-discharge circuit difference
AC/DC12V power circuit and battery pack are connected, which gives the DC12V direct current of access after conversion
Battery pack charging；DC/DC5V power circuit connects AC/DC12V power circuit, and the DC/DC5V power circuit is using MP1584 electricity
DC12V direct current is converted to DC5V direct current by source control chip；DC/DC3.3V power circuit connects DC/DC5V power circuit,
The DC/DC3.3V power circuit uses HT7133 power management chip, for DC5V direct current to be converted to DC3.3V direct current；
The power supply module provides tri- kinds of direct currents of DC12V, DC5V, DC3.3V to module for power supply each in controller respectively.
It include current sampling circuit, voltage sampling circuit and sampled reference source circuit in voltage and current sample module.
Wherein, current sampling circuit uses the turn ratio 1000:1 current transformer carries out being converted to low current by high current is loaded, then
Current signal is converted into voltage signal, because alternating current be the voltage signal converted out of sine wave signal have just have it is negative, by the
Level-one operational amplification circuit is biased addition adjustment, and negative voltage is adjusted to positive voltage, then passes through second level operation amplifier
Circuit carries out 1:1 follows amplification, and for doing impedance adjustment, the 1.7V-3V sine voltage of output is then inputed to processor
A D interface carry out high-speed ADC sampling.Processor is automatic using the ADC DMA function inside processor with interval 100us speed
High-speed sampling sine voltage is carried out, sampling 10000 times per second, for the alternating current of 50Hz, each sine wave period can be adopted
200 voltage values of sample choose maximum voltage value Umax, that is, may know that the peak of current signal by comparing this 200 voltage values
Value, the peak I p of load current can be calculated by formula 1000* (2*Umax-3)/402, can be with by formula Ip/1.414
The virtual value of load current is calculated, the virtual value sampling of controller load current so far can be completed.When calculated electric current
When virtual value is close to 0, that is, it can determine whether that road lamp is turned off the light failure.
After controller of the invention has sampled load current virtual value, record will do it, will record one at interval of 60 seconds
Virtual value records a timestamp information into extended menory, and by the virtual value, then can be by the current effective value and road
The nominal current effective value of lamp lamps and lanterns carries out difference comparsion, if current flow virtual value is less than road lamp, nominal electric current is effective
When value 10%, that is, can determine whether road lamp mould group failure, indicate part light source failure in lamps and lanterns, and by wireless communication module to
Management server reports lamps and lanterns part light source failure.
Voltage sampling circuit of the invention, using 1:The resistance of 1 voltage transformer, the 200K that then connects carries out electricity
Pressure sampling, it is identical with load current sampling principle, addition adjustment is biased by first order operational amplification circuit, by negative voltage
It is adjusted to positive voltage, then carries out 1 by second level operational amplification circuit:1 follows amplification, then defeated for doing impedance adjustment
The A D interface that 1.7V-3V sine voltage signal inputs to processor out carries out high-speed ADC sampling, and CPU processor is still with every
The frequency that second samples 10000 times samples the sine wave, and each sine wave period can sample 200 voltage values, by comparing
This 200 voltage values choose maximum voltage value Umax, that is, may know that the peak value of current signal, pass through formula 200* (2Umax-3)
The peak value Vp that load voltage can be calculated, the virtual value of load voltage can be calculated by formula Vp/1.414, so far may be used
To complete the virtual value sampling of controller load voltage.By being risen to circuit in lamp load voltage effective value and Street lamps control cabinet
The comparison of beginning voltage effective value, it can be determined that the pressure drop numerical value for going out controller end cable can suggest street lamp if pressure drop is excessive
Administrative department repairs processing.
The present invention avoids producing in operational amplifier amplification process to improve the ADC sampling precision to electric current and voltage
Error, include sampled reference source circuit in voltage and current sample module, the sampled reference source circuit is by a TL431 core
Piece generates the voltage of a 2.495V, obtains the reference voltage Vref of a 1V by electric resistance partial pressure then to guarantee operation amplifier
The steady operation of device ensure that the sampling precision of electric current and voltage.And by being carried out by processor to sampled reference source Vref
ADC sampling, can verify the error in sampled reference source, carry out error correction by software, ensure that the present invention carries out electric current and electricity
Pressure can achieve 1% sampling precision.
Current sampling circuit and voltage sampling circuit of the invention all uses mutual inductor and carries out adopting for load current voltage
Sample has protection TVS pipe because of mutual inductor insulation performance with higher, and in sample circuit, and ensure that is having lightning stroke and surge
When electric current occurs, the load current and voltage sampling circuit and processor of equipment will not be damaged.It is only necessary to AC/DC by the present invention
Power supply module carries out anti-lightning strike and Anti-surging protective treatment.
Relay driving module of the invention, is connected with processor, the control signal from processor is received, for controlling
The switch lamp of road lamp processed drives the relay of a 12V to realize the power supply and power-off of road lamp by a triode,
Operation is lamped on and off by what long distance wireless instruction may be implemented road lamp, in order to increase the security reliability of street lamp,
The normally opened NO of relay, the normally closed contact NC are connected to output wiring terminal by lead by invention, and different applications is used
Different connection outlet methods is powered to road lamp using the normally closed contact NC, is guaranteed silent for conventional road street lighting
Recognize that power on be exactly the state of turning on light, disconnects by long distance wireless instruction control relay contact of turning off the light when needing to turn off the light and complete to close
Lamp, when occurring power failure or relay control failure in equipment running process, relay automatically restores to normally closed NC touching
Dotted state, road lamp is still the state of turning on light after ensure that equipment fault, avoids the problem that road lighting is turned off the light appearance；For
It is defaulted as the application turned off the light and is powered using the normally opened contact NO to road lamp, be ensure that in equipment fault and relay control failure
When, relay automatically restores to normally opened NO contacts status, and lamps and lanterns are turn-off after ensure that equipment fault.
Light modulation output module of the invention, is connected with processor, and 1KHz duty ratio of the reception from processor is 0-
100% pulse width modulating signal, the pulse width modulating signal put output after two-stage capacitor charge and discharge to an operation
Big device follows driving output 0-10V adjustable voltage, and street lamp may be implemented in the driving power of adjustable voltage connection road lamp
The brightness adjustment control of power and illumination, to realize the purpose of dimming energy-saving.
Processor of the invention is mainly used to complete sending and receiving for wireless instructions and data, and according to instruction control after
Electrical equipment drive module realizes the switch lamp control of street lamp, and control light modulation output module realizes 0-10V light modulation output.To load electricity
Stream, voltage are sampled, and according to the electric current and voltage of sampling, and output electric current, electricity are compared with the threshold parameter of configuration
Pressure alarm.The cryptographic authentication process for realizing wireless communication data and device upgrade program by encryption trusted authentication chip simultaneously, guarantees
The safeties of wireless telecommunications prevents controller equiment from being kidnapped by illegal invasion and controls.
The present invention can also realize intelligence other than switch lamp control, dimming energy-saving and the fault detection of realizing road lamp
Intelligent city wireless networking application, the present invention realize that the wireless networking between street lamp post communicates by wireless communication module, the present invention
The wireless networking is named as wireless-transmission network, which can be realized the up to high speed communication of 1-500kbps.
The present invention has electric all the way to adapt to the applications of a variety of different road lamps in voltage and current sample module
Press sample circuit, two-way current sampling circuit and a load sampled reference source, in relay driving module with two-way after
Electrical apparatus driving circuit, dimming in output module, there is two-way to dim output circuit, and every road light modulation output circuit can at least drive 2
Road the 0-10V on totally 4 tunnels road lamp dim electricity.The switch control of one group of illuminator, fault detection may be implemented in the present invention
And brightness adjustment control, it can also realize one group of switch control and fault detection capability based on the electrical equipment on street lamp post.
Fig. 2 is the circuit diagram for dimming output module.Include in the light modulation output module by R803, R804, C801,
R805, C802 and R824 composition two-stage RC capacitor charge and discharge circuit, be with two-stage in order to allow voltage change to more tend to steadily,
PWM_OUT1_V, which exports 3.3V PWM wave, allows the capacitor charge and discharge time by the turn-off time of different duty cycle adjustment Q801
Changing causes output 1-10V adjustable, and amplifier U801 does level-one and circuit is followed to improve output carrying load ability, can guarantee defeated
Voltage loads ability keeps 40mA out, if load capacity that will also be bigger, can add Q802, remove R808, in this way can be with
Bigger load current is provided by A_DC12V, D801 is TVS pipe, prevents having moment big between the circuit of light modulation and light source driving
The interference of voltage, R810 and R811 composition 1-10V export feedback loop, since the size of supply voltage A_DC12V influences whether
The fixing-stable of 1-10V exports, and to guarantee that fixed voltage stablizes output, adds a feed circuit, single-chip microcontroller passes through PWM_CHK_
The port ADC_5 sampling feedback automatically adjusts duty ratio, exports and stablizes dimmer voltage.
Feedback regulation mode is as follows：Assume that supply voltage is 12V under default conditions, then PWM_OUT1_V duty ratio is
2%, it exports as 10V, if actual power voltage is greater than 12V, the voltage exported under 2% duty ratio will be greater than 10V,
Learnt by feedback sample be not we need 10V, duty ratio will be increased, until export stablize 10V, if instead power supply electricity
Pressure is less than 12V, and the voltage of 2% duty ratio output will be less than 10V, and reduce duty ratio by feedback regulation, until output is stablized
10V, duty ratio no longer change.
Fig. 3 is the circuit diagram of voltage and current sample module.It include current sample in voltage and current sample module
Circuit, voltage sampling circuit and sampled reference source circuit.It is specific as follows：
Current sampling circuit does first order absorption in one TVS pipe of secondary parallel, prevents transformer secondary from generating spike electricity
Pressure causes the harm of over-voltage to rear end, and mutual inductor uses current transformer 5A:5mA, that is, the turn ratio 1000:1, i.e., if it is primary
Side electric current is that i1 is 1A, then secondary side i2=1/1000=1mA, and R602 both end voltage is ui2=i2*R602=1V (effective
Value), amplitude 1.414V, ui2max=1.414V, ui2min=-1.414V, due to sampling electric current be AC signal so
There is a generating positive and negative voltage, amplifier is for the first time bias amplifier, by negative voltage total transform at positive voltage,
Input/output relation formula is as follows：
Uo1=ui1-R603/R601 (ui2-ui1)
Wherein, positive input voltage is ui1, that is, Vref, reverse input end voltage ui2, i.e. R602 both end voltage.
Ui2=R602*i1/1000
As ui2=ui2min=-1.414*R602*i1/1000, CURRENT_ADC_1 samples to obtain crest voltage
Uo1p can calculate primary side current virtual value by above-mentioned formula.
C12 makees active power filtering, filters out High-frequency Interference, and second level amplifier follows circuit to do impedance transformation, improves sampling essence
Degree.Primary input current is 1A, and calculating theoretical sample magnitude voltage is 1.789V.
Voltage sampling circuit, in the input terminal that a primary and MOV for mutual inductor is effectively protected when lightning stroke passes through
It waits and the bleed-off circuit of energy is provided, while in one TVS pipe of secondary parallel, doing duplicate protection, absorb primary and pass to the surplus of secondary
Complementary energy spike, avoids the harm that over-voltage is caused to rear end, and mutual inductor uses voltage transformer 2mA:2mA, that is, the turn ratio
2000:2000, one 200K resistance of series connection is surveyed primary, i.e., if primary side voltage is 220V, primary side current i1=220/
200000=1.1mA, secondary side are also i2=1.1mA, and R703 both end voltage is ui2=i2*1000=1.1V (virtual value), most
Big value is 1.555V, and minimum value is -1.555V, since the electric current of sampling is AC signal so there is generating positive and negative voltage, amplifier first
Secondary is bias amplifier, by negative voltage total transform at positive voltage.
Input/output relation formula is as follows：
Uo1=ui1-R704/R702 (ui2-ui1)
Wherein, positive input voltage is ui1, that is, Vref, reverse input end voltage ui2, i.e. R703 both end voltage.
Ui2=R703*i1/1000
As ui2=ui2min=-1.414*R703*Vin/R701, VOLTAGE_ADC_3 samples to obtain crest voltage
Uo1p,
An input voltage vin can be calculated by relational expression ui2=R703*Vin/R701.
C12 makees active power filtering, filters out High-frequency Interference, and second level amplifier follows circuit to do impedance transformation, improves sampling essence
Degree.When input voltage is 220V, calculating theoretical sample magnitude voltage is 2.275V
High-precision TL431 is shorted by sampled reference source circuit with reference to pole and cathode, and it is effective to do high-precision voltage stabilizing, reference level
Stablize output 2.495V, fluctuation actual measurement 10-15mV, by R502, it is 1V reference voltage that R503 partial pressure, which takes R503 both end voltage,
Vref can do AD voltage sample at the both ends R503 to improve higher precision, the correction reference source in software, improve electric current
Sampling precision.
Fig. 4 is the circuit diagram of relay driving module.Relay driving module, using optocoupler LTV817 to triode
Carrying out isolation control makes relay primary coil both ends generate voltage, and last relay secondary is connected, and relay is secondary initial silent
Think normally closed, i.e., 3 are connected with 5 feet, when ST_K_O1 input high level, optocoupler secondary conducting, by the electricity for pulling up A_DC12V
Pressure driving, Q901 conducting, the primary coil of relay and A_DC12V simultaneously connect, and relay switch is flipped, and 3 feet are led with 4 feet
Logical, 5 feet are hanging, and the circuit connecting with 5 feet disconnects.
Fig. 5 is the circuit diagram of power supply module.It include AC/DC12V power circuit, DC/ in power supply module
DC5V power circuit, DC/DC3.3V power circuit, battery charge-discharge circuit and battery pack.
AC/DC12V power circuit uses the parameter of outsourcing for input 90-264V, the module of rated output 12V/400mA,
The module uses Flayback route, transformer isolation.
DC/DC5V power circuit, using MP1584 power management chip, input voltage can be 4.5V-28V, output voltage
It is adjusted by the no-load voltage ratio of R206, R207, by the voltage of the FB pin detection output of MP1584 power management chip, is carried out
The adjusting of internal duty ratio, the voltage for keeping its output stable and fixed：
Output voltage Vout=Vfb(R206+R207)/R207, Vfb=0.8V, R206 value 210K, R207 value 40.2K,
Theoretical calculation takes VoutIt is consistent with actual test for 4.979V.
DC/DC3.3V power circuit is being guaranteed using three linear voltage regulator circuits using HT7133 power management chip
Vin≥VoutUnder the premise of+1.2V, adjusts to export by chip interior and stablize 3.3V voltage.
Battery charge-discharge circuit, uses the charging module using TP5100 as master chip, external one group of power switching circuit：
1) when A_DC12V power supply is normal, while guaranteeing to charge normal, PMOS Q201VGS's battery pack is positive, and Q201 is closed at this time
Disconnected, B_OUT voltage is the pressure drop that A_DC12V subtracts D201, VDD_OUT=12-Vd；2) when A_DC12V supplies electrically disconnected, VGS
It is negative and PMOS is driven to be connected, B_OUT is battery power supply, by detecting cell voltage VBAT, detects voltage constantly to judge battery
Whether in the state being charged or discharged.
Battery charge-discharge circuit of the invention is used to carry out management of charging and discharging, when daytime, street lamp was turned off the light, road to battery pack
The power-off of lamp return cable, the AC220V AC power source power-off of controller input, battery charge-discharge circuit is by the electric energy in battery pack
DC5V, DC3.3 DC power supply is converted to be powered to processor, wireless communication module and memory to complete Wireless Networking and lead to
The function of news.After being arrived to evening street lamp lighting time, street lamp loop cable power supply AC220V alternating current, controller input
AC220V AC power source, battery charge-discharge circuit supply electricity to battery pack by DC12V direct current and charge, just stop after battery pack charging complete
It only charges, while being powered to other modules.Battery pack of the invention is used for the feelings interrupted in AC220V AC power supply
Under condition, give wireless networking necessary several assembly power supplies by battery charging and discharging module.Battery charging condition of the invention and
Battery voltage carries out the detection of battery charging condition and battery voltage by processor, facilitates and carries out the confession of controller battery
The judgement and processing of electric fault.
There are two types of current supply circuits for tool when the present invention powers to modules：
1) output module, relay driving module are dimmed and directly provide DC12V direct current supply by AC/DC12V power circuit,
Voltage and current sample module provides DC5V direct current supply by DC/DC5V power circuit；
2) wireless communication module, memory provide DC3.3V direct current by DC12V direct current after battery charge-discharge circuit
Power supply, daytime street lamp turn off the light, road lighting cable circuit power-off；In the case that controller external AC 220V alternating current powers off, by electricity
Pond group is powered by battery charge-discharge circuit to DC/DC3.3V power circuit, and street lamp is turned on light at night, and road lighting cable circuit supplies
Electricity, in the case where controller external AC 220V AC power supply, battery charge-discharge circuit is returned other than to battery pack charging
The power supply of DC/DC3.3V power circuit.The present invention ensure that either by two loop power supplies and the power supply of battery pack backup power supply
Daytime and evening can guarantee the stable operation of the wireless network networking of smart city.
The present invention by detection of the processor to battery charge-discharge circuit, be able to detect be currently AC220 Alternating Current Power Supply also
It is battery-powered, while is able to detect battery voltage, preresearch estimates battery pack remaining capacity adjusts nothing according to remaining capacity
The protocol algorithm of gauze network realizes maximum extension battery-powered time, guarantees wireless network longest parallel-adder settle-out time.
Fig. 6 is the circuit diagram of processor and wireless communication module.Pass through between processor and wireless communication module
SPI interface connection, wireless communication module SI4463 wireless telecommunications mould group, the communication module group realize wireless data by RF_NIRQ
The remote-wireless communication of 1k-500k rate may be implemented, for realizing between lamp stand and lamp stand in the interruption quick response of transmitting-receiving
High speed communication, carry out road lamp switch lamp, dimming energy-saving, fault detection management, also achieve street lamp post perimeter sensors number
According to management.It is powered using 3.3V to wireless communication module in the present invention, reduces the power consumption of controller equiment.
Processor uses STM32F103RCT6 chip, and memory capacity 256KB, SRAM 48KB in the chip supports 3
Group SPI interface, 2 groups of I2C, 5 groups of USART, 1 group of USB, 1 group of CAN, 51 GPIO mouthfuls, 16 road ADC, 2 road DAC, maximum speed can
To reach 72M.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of the claim
Subject to enclosing.
In the above-described embodiments, can come wholly or partly by software, hardware, firmware or any combination thereof real
It is existing.When implemented in software, it can entirely or partly realize in the form of a computer program product.The computer program
Product includes one or more computer instructions.When loading on computers and executing the computer program instructions, all or
It partly generates according to process or function described in the embodiment of the present invention.The computer can be general purpose computer, dedicated meter
Calculation machine, computer network or other programmable devices.The computer instruction can store in computer readable storage medium
In, or from a computer readable storage medium to the transmission of another computer readable storage medium, for example, the computer
Instruction can pass through wired or wireless way to another website from a web-site, computer, server or data center
Website, computer, server or data center are transmitted.The computer readable storage medium can be computer and can deposit
Any usable medium taken either includes that the data storages such as one or more usable mediums integrated server, data center are set
It is standby.The usable medium can be magnetic medium, optical medium or semiconductor medium etc..
Claims (10)
1. a kind of wireless street lamp micro-base station controller, the controller includes voltage and current sample module, processor, power supply confession
Electric module, wireless communication module, light modulation output module and relay driving module, it is characterised in that：
It include current sampling circuit, voltage sampling circuit and sampled reference source circuit, electric current in voltage and current sample module
Sample circuit and voltage sampling circuit are connected with processor respectively；
Relay driving module is connected with processor, the control signal from processor is received, for controlling road lamp
Switch lamp；
Output module is dimmed, is connected with processor, the pulse width that the 1KHz duty ratio from processor is 0-100% is received
Modulated signal；
Processor for sending and receiving for instruction and data, and controls the switch lamp control that relay driving module realizes street lamp
System, control light modulation output module realize 0-10V light modulation output；
It include AC/DC12V power circuit, DC/DC5V power circuit, DC/DC3.3V power circuit, battery in power supply module
Charge-discharge circuit and battery pack, the power supply module provide tri- kinds of direct currents of DC12V, DC5V, DC3.3V to control respectively
Each module for power supply in device processed.
2. wireless street lamp micro-base station controller according to claim 1, it is characterised in that：The voltage and current sample mould
There is voltage sampling circuit, two-way current sampling circuit and a load sampled reference source all the way in block；The relay drives
There is two-way relay drive circuit in dynamic model block.
3. wireless street lamp micro-base station controller according to claim 1, it is characterised in that：Have in the light modulation output module
There is two-way to dim output circuit.
4. wireless street lamp micro-base station controller according to claim 1, it is characterised in that：The current sampling circuit uses
The turn ratio 1000:1 current transformer carries out being converted to low current by high current is loaded, and current signal is then converted to voltage letter
Number.
5. wireless street lamp micro-base station controller according to claim 1, it is characterised in that：The voltage sampling circuit uses
1:The resistance of 1 voltage transformer, the 200K that then connects carries out voltage sample；The sampled reference source circuit uses
Then TL431 chip passes through the reference voltage Vref that electric resistance partial pressure obtains a 1V to generate the voltage of a 2.495V.
6. wireless street lamp micro-base station controller according to claim 1, it is characterised in that：The voltage and current sample mould
There is protection TVS pipe in block.
7. wireless street lamp micro-base station controller according to claim 1, it is characterised in that：
AC/DC12V power circuit connect AC220V exchange input, and will exchange input be converted into DC12V/12W direct current output to
DC/DC5V power circuit and battery charge-discharge circuit.
8. wireless street lamp micro-base station controller according to claim 1, it is characterised in that：
Battery charge-discharge circuit is separately connected AC/DC12V power circuit and battery pack, and the battery charge-discharge circuit is by access
DC12V direct current charges after conversion to battery pack.
9. wireless street lamp micro-base station controller according to claim 1, it is characterised in that：
DC/DC5V power circuit connects AC/DC12V power circuit, which uses MP1584 power management core
DC12V direct current is converted to DC5V direct current by piece.
10. wireless street lamp micro-base station controller according to claim 1, it is characterised in that：
DC/DC3.3V power circuit connects DC/DC5V power circuit, which uses HT7133 power supply pipe
Chip is managed, for DC5V direct current to be converted to DC3.3V direct current.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810702484.2A CN108834278A (en) | 2018-06-30 | 2018-06-30 | A kind of wireless street lamp micro-base station controller |
| CN201910402211.0A CN110022633A (en) | 2018-06-30 | 2019-05-14 | A kind of lighting network control applied to municipal road lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810702484.2A CN108834278A (en) | 2018-06-30 | 2018-06-30 | A kind of wireless street lamp micro-base station controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108834278A true CN108834278A (en) | 2018-11-16 |
Family
ID=64134917
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810702484.2A Pending CN108834278A (en) | 2018-06-30 | 2018-06-30 | A kind of wireless street lamp micro-base station controller |
| CN201910402211.0A Pending CN110022633A (en) | 2018-06-30 | 2019-05-14 | A kind of lighting network control applied to municipal road lamp |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910402211.0A Pending CN110022633A (en) | 2018-06-30 | 2019-05-14 | A kind of lighting network control applied to municipal road lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN108834278A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110248452A (en) * | 2019-06-10 | 2019-09-17 | 海洋王（东莞）照明科技有限公司 | A kind of explosion-proof lamp control circuit and system |
| CN110635799A (en) * | 2019-10-25 | 2019-12-31 | 北京机械设备研究所 | Analog signal isolation circuit based on optocoupler |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110719022A (en) * | 2019-10-21 | 2020-01-21 | 珠海格力电器股份有限公司 | Sampling feedback circuit, sampling feedback method and inverter system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6631063B2 (en) * | 2001-06-05 | 2003-10-07 | Hector P. Ortiz | System for monitoring electrical circuit operation |
| US7276861B1 (en) * | 2004-09-21 | 2007-10-02 | Exclara, Inc. | System and method for driving LED |
| CN100546847C (en) * | 2007-09-30 | 2009-10-07 | 厦门宏发电力电器有限公司 | A kind of flasher flash controller and control method thereof |
| CN102695334A (en) * | 2012-05-11 | 2012-09-26 | 华南理工大学 | Intelligent light modulation apparatus for LED concentrated direct current power supply system |
| CN102752929A (en) * | 2012-06-28 | 2012-10-24 | 上海大学 | High-power factor LED (light-emitting diode) driving circuit supporting silicon controlled rectifier dimming |
| CN206149551U (en) * | 2016-10-19 | 2017-05-03 | 聊城大学 | Based on zigBee and GPRS intelligence street lamp control system |
-
2018
- 2018-06-30 CN CN201810702484.2A patent/CN108834278A/en active Pending
-
2019
- 2019-05-14 CN CN201910402211.0A patent/CN110022633A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110248452A (en) * | 2019-06-10 | 2019-09-17 | 海洋王（东莞）照明科技有限公司 | A kind of explosion-proof lamp control circuit and system |
| CN110635799A (en) * | 2019-10-25 | 2019-12-31 | 北京机械设备研究所 | Analog signal isolation circuit based on optocoupler |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110022633A (en) | 2019-07-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102917509B (en) | Intelligent digital LED (Light Emitting Diode) drive controller and illumination monitoring system | |
| CN101237156B (en) | Realization method for wall-hang energy-saving high-frequency switch DC power system | |
| CN108834278A (en) | A kind of wireless street lamp micro-base station controller | |
| CN108683245B (en) | Outdoor lighting direct current power supply system based on artificial intelligence learning | |
| CN209151409U (en) | A kind of wireless street lamp micro-base station controller | |
| CN204557709U (en) | A kind of safety early warning device | |
| CN203910935U (en) | Intelligent batteries and monitoring system for intelligent batteries | |
| CN204334104U (en) | A kind of wireless sensor network node of multiple-energy-source mode power | |
| CN208835749U (en) | A kind of power supply unit for micro-base station controller | |
| CN109041358A (en) | A kind of wireless street lamp micro-base station controller | |
| CN202330594U (en) | Computer program-controlled testing platform for intelligent distribution transformer terminal | |
| CN202857101U (en) | Intelligent digital LED driving controller and lighting monitoring and control system | |
| CN204131788U (en) | A kind of wind/solar hybrid street light controller based on MPPT | |
| CN102083267B (en) | Electricity saving device | |
| CN211152288U (en) | Intelligent controller of wisdom lamp pole | |
| CN204578831U (en) | Solar lighting intelligent monitor system | |
| CN208721730U (en) | A kind of electric current and voltage acquisition equipment | |
| CN212851118U (en) | Solar LED lamp constant current control system based on Internet of things module | |
| CN202364424U (en) | Intelligent street lamp energy-saving monitoring device | |
| CN206602402U (en) | A kind of self-powered distributed intelligence distribution terminal system and its self-power supply device | |
| CN210042329U (en) | Single lamp controller of street lamp | |
| CN207964933U (en) | Electric transmission line hot-line indicates system | |
| CN204116901U (en) | A kind of intelligent switch for Zigbee-technology | |
| CN209151408U (en) | A kind of street lamp driving equipment | |
| CN105207613A (en) | Solar POE (Power Over Ethernet) power supply single equipment with intelligent network management |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181116 |
|
| WD01 | Invention patent application deemed withdrawn after publication |