CN203151822U - Bus type lighting controlling device with address identification - Google Patents

Abstract

The utility model discloses a bus type lighting controlling device with address identification, belonging to the intelligent lighting control technical filed and comprises a host computer control portion, an MCU(Microprogrammed Control Unit) and 1-Wire bus network driving portion and a 1-Wire bus node control portion, wherein a host computer server performs serial port communication with an MCU through a CAN bus; the MCU is in wireless connection with an address selection remote control transmitter through an infrared remote controller; a 1-Wire bus is respectively in connection with a plurality of switch driving modules; each switch driving module is in connection with respective controlled load and work power supply, wherein the controlled load comprises a lighting device, a relay and an indicating lamp. The bus type lighting controlling device with address identification possesses the advantages of simple wiring, strong stability and energy conservation and has good application prospects.

Description

A kind of bus type illumination control apparatus that contains Address Recognition

Technical field

The utility model belongs to intelligent lighting control technology scope, particularly a kind of bus type illumination control apparatus that contains Address Recognition.

Background technology

Lighting Control Assembly is the important component part of building industry, and is closely related with our life.Modern intelligent building requires Lighting Control Assembly when good comfortable luminous environment is provided, also will reach the effect of green energy conservation.Along with intelligent high development, the traditional lighting control mode and based on the automatic illumination control mode of DDC because it expends shortcomings such as cable is many, construction and installation are complicated, automaticity is low, replaced by the intelligent lighting control mode gradually.

Fieldbus Based its control circuit of intelligent lighting control mode is simple in structure, save cable, load capacity is big, be convenient to safeguard and transform, and can arrange by software and realize that illumination control is intelligent.The bus protocol of controlling that now has been applied to throw light on has: ACN bus, Art-net bus, Dynet bus, DALI bus, EIB bus, DMX512 bus, HBS bus, C-Bus bus etc.Many bussing techniques have its advantage separately that its limitation is also arranged, owing to these bussing techniques of reasons such as technology and market are difficult to unified on a standard.

Based on above illumination control current situation, we are necessary to study a kind of novel suitable architecture indoor illumination, the bus lighting controller of good energy-conserving effect.

The utility model content

The purpose of this utility model is to provide a kind of bus illumination control apparatus that contains Address Recognition at the traditional lighting control mode with based on the automatic illumination control mode of DDC owing to it expends shortcomings such as cable is many, construction and installation are complicated, automaticity is low, it is characterized in that this device comprises PC control part 1, MCU (micro-control unit) and 1-Wire bus network drive part 2 and 1-Wire bus node control section 3;

Described PC control partly comprises host computer server and CAN bus, and the host computer server is by carrying out serial communication between CAN bus and the MCU;

Described MCU and 1-Wire bus network drive part comprise: MCU is connected with 1-Wire bus driver module (DS2482-100), but MCU is by Infrared remote controller and the wireless connections of addressing remote control transmitter;

Described 1-Wire node control part connects 1-N switch drive module respectively by 1-Wire bus (binary channels programmable I/O chip DS2413); Each switch drive module connects controlled load and working power separately; Controlled load comprises lighting device, relay and indicator light.

Described N is positive integer.

DS2482-100 chip in the described 1-Wire bus driver module is the bridge joint device of I2C bus (host computer bus protocol) and 1-Wire bus (1-Wire is from the device bus protocol), can directly be connected with the I2C main frame of standard or quick (400kHz maximum), finish I2C main frame and any downstream 1-Wire bus from the bidirectional bus protocol conversion between the device.

The frequency maximum of described standard I 2C main frame is 100kHz; The frequency maximum of I2C main frame is 400kHz fast.

The beneficial effects of the utility model are addressable lighting controllers of researching and developing with deficiency at the shortcoming that existing Lighting Control Assembly exists.Utilize the 1-Wire bussing technique to realize long distance, point-to-point multichannel remote control, made up remote control reception and addressable master controller and based on the controlled object receiver of 1-Wire bus, saved the reception controller of point-to-point wireless remote control in the past.And only finish control to the purpose controlled device by 1 control bus, saved the I/O resource of system greatly, system wiring is simple, with low cost.The lighting controller stable performance that contains Address Recognition provided by the utility model is convenient to the bus expansion and is safeguarded that switch amount control has good popularization and application prospect.

Description of drawings

Fig. 1 is the general structure schematic diagram of lighting controller system.

Fig. 2 is the connection diagram of chip DS2482-100.

Fig. 3 is the connection diagram of chip DS2413.

Fig. 4 is the connection diagram of MCU and 1-Wire bus network drive part.

Fig. 5 is the connection diagram of 1-Wire bus node control section.

Embodiment

The utility model provides a kind of bus illumination control apparatus that contains Address Recognition.Below in conjunction with accompanying drawing the utility model is elaborated.

Fig. 1 is the system global structure schematic diagram of lighting controller.This device comprises PC control part 1, MCU (micro-control unit) and 1-Wire bus network drive part 2 and 1-Wire bus node control section 3;

Described PC control partly comprises host computer server and CAN bus, and the host computer server is by carrying out serial communication between CAN bus and the MCU; Mainly finish and MCU between serial communication, and then realize control and data acquisition to remote equipment, serial communication protocol adopts RS232 standard connected in series.The host computer server can be placed in system control office, and communicates by letter with MCU by the CAN bus.

Described MCU and 1-Wire bus network drive part comprise: MCU is connected with 1-Wire bus driver module (DS2482-100), MCU by Infrared remote controller (apolegamy) but and the wireless connections of addressing remote control transmitter; 1-Wire bus driver module is connected with 1-Wire bus (binary channels programmable I/O chip DS2413); That wherein MCU adopts is single-chip microcomputer STC90C51, and Infrared remote controller adopts SM0038.Owing to directly adopt 1-Wire binary channels programmable I/O chip DS2413 can only realize the short-range signal transmission, signal is subject to external interference when distance surpasses 3m between DS2413 and the MCU, realize far distance controlled so need drive chip DS2482 by the 1-Wire bus network, actual range can reach 300m.Among Fig. 1, with dashed lines gets up MCU and 1-Wire bus network drive part frame, shows MCU, Infrared remote controller, 1-Wire bus network driving chip etc. are integrated on the development board of 8cm * 8cm, and it is placed in the factory building, is convenient to Infrared remote controller control.

Described 1-Wire node control part connects 1-N switch drive module (N is positive integer) by the 1-Wire bus respectively for (binary channels programmable I/O chip DS2413); Each switch drive module connects controlled load and working power separately; Controlled load comprises lighting device, relay and indicator light.DS2413, relay, indicator light are integrated on the development board of 3cm * 3cm, make a node control box.The node control box can be placed on each controlled plant neatly, and then realizes the remote control of point-to-point addressable multichannel.

The lighting controller that the utility model is studied, do not comprise the test section, according to existing situation, do not consider sunlight to the influence of room light photograph, just do not consider curtain lifting module, only studied the addressable control of ligthing paraphernalia, realize all light fixtures of centralized control in the space, by the addressing to light fixture, control the light on and off of each light fixture on request, form the lighting effect of different mode.In addition, the utility model does not elaborate the PC control part, because the host computer communications portion is a comparatively complicated network, need further studies, improve.Research core of the present utility model is exactly slave computer MCU, 1-Wire bus network drive part, 1-Wire bus node control section.

Fig. 2 is the connection diagram of chip DS2482-100.Described DS2482-100 chip is the bridge joint device of I2C bus (host computer bus protocol) and 1-Wire bus (1-Wire is from the device bus protocol), can directly be connected with the I2C main frame of standard (100kHz maximum) or quick (400kHz maximum), finish I2C main frame and any downstream 1-Wire bus from the bidirectional bus protocol conversion between the device.

DS2482-100 has 8 pins, is respectively: VCC, IO, GND, SCL, SDA, PCTLZ, AD1, AD0.Pin 1(VCC) is the supply voltage input; Pin 2(IO) be that the 1-Wire I/O drives; Pin 3(GND) be with reference to ground; Pin 4(SCL) is the input of I2C serial clock, must be connected to VCC by pull-up resistor; Pin 5(SDA) is the I/O of I2C serial data, must be connected to VCC by pull-up resistor; Pin 6(PCYLZ) low level is effectively controlled output, is used for the outside P channel mosfet of control, for the 1-Wire bus provides extra power supply, for example: for the 1-Wire device provides bigger electric current temporarily; Pin 7(AD1) with pin 8(AD0) be the I2C address input end, must be connected to VCC or GND, these inputs determine that the I2C of this device is from the address.

DS2482-100 also is self-timing 1-Wire console controller, supports senior 1-Wire waveform characteristic, comprises on standard and speed at a high speed, active pull up and power supply power supply strong drawing.In case order and data are provided, the i/o controller of DS2482-100 can be realized strict 1-Wire communication function regularly.Main frame obtains feedback (searching route of 1-Wire function completion status, transponder pulse, 1-Wire short circuit, selection) by status register again, or reads data by read data register.DS2482-100 can be implemented under mode standard or the fast mode and the communicating by letter of host-processor by the I2C bus interface.

SDA is the open-drain output of DS2482-100, needs a pull-up resistor to realize high logic level.Because DS2482-100 only uses SCL as input (no clock expansion), so main frame can be by having the open drain/collector output of pull-up resistor (metal-oxide-semiconductor), or push-pull type output driving SCL.According to the I2C index, when VOL is 0.4V, must be able to suck the electric current of 3mA at least from device.This dc state has been determined the minimum value of pull-up resistor: RP (MIN)=(VCC-0.4V)/3mA.Adopt the operating voltage of 5.5V, the minimum of pull-up resistor is to be 1.7k Ω.For the I2C system, 70% test rise time and fall time from drawing 30% of voltage to what draw voltage.The bus capacitance CB of heap(ed) capacity is 400pF.Under the mode standard, the maximum rise time can not surpass 1000ns; And be 300ns under fast mode.Suppose the rise time calculating with maximum, resistance value maximum under given capacitor C B is calculated as: RPMAXS=1000ns/[CB xln (7/3)]; RPMAXF=300ns/[CB x ln (7/3)].For the bus capacitance of 400pF, under the mode standard, maximum pull-up resistor is 2.95k Ω, and under fast mode, then is 885 Ω.1.7k the resistance value between Ω and the 2.95 k Ω can satisfy all requirements under the mode standard.Because pull-up resistor is 885 Ω, need to satisfy the index of the rise time under high speed and 400pF bus capacitance.885 Ω pull-up resistors are lower than the RP (MIN) that requires under 5.5V, therefore must find out another kind of method.At first calculate the minimum pull-up resistor under any given operating voltage, then calculate each the self-corresponding bus capacitance of rise time that produces 300ns again.For 3V or lower on draw for the voltage, can allow the bus capacitive load of 400pF.And for 4V or lower on draw voltage, can accept 300pF or lower bus capacitive load.Draw voltage on any under the fast mode, bus capacitance can not surpass 200pF.

The register that DS2482-100 has three I2C main frames to read: configuration register, status register and read data register.By read pointer these three registers are carried out addressing.The position of read pointer, just the register that reads in read access subsequently of main frame is to define by the instruction of at last DS2482-100 being carried out.Main frame enables the 1-wire bus functionality by the reading and writing configuration register.

DS2482-100 can enable or selects three 1-Wire functions by configuration register, and these functions are: active pull up (APU), Qiang Shangla (SPU) and 1-Wire speed (1WS).Device resets after (re-power or Device Reset order initialization), and configuration register is 00h.When configuration register is carried out write operation, when having only high four (the 7th to the 4th) to be the radix-minus-one complement of low four (the 3rd to the 0th), just accept new configuration data.When configuration register was carried out read operation, Gao Siwei remained 0h.APU position control by active pull up (transistor that Slew Rate is controlled) still draw by on passive (RWPU resistance) drive the 1-Wire bus from low level to high level.The course of work: at t1 constantly, drop-down end.From this constantly, the 1-Wire bus is drawn high by the resistance R WPU of DS2482-100 inside.On the rate that skews determined by the capacitive load on VCC and the 1-Wire bus.If active pull up is under an embargo (APU=0), draw on the resistance to work on, shown in realizing.Enable at active pull up under (APU=1) condition, when voltage t2 reaches VIL1(MAX constantly) and VIH1(MIN) between the time, DS2482-100 adopts the controlled active 1-Wire bus of drawing high of Slew Rate.Continue active pull up, reach the tAPUOT time-delay constantly up to t3 and stop.After this, keep drawing on the resistance always.

Fig. 3 is the connection diagram of chip DS2413.DS2413 has 6 pins, is respectively: GND1, IO, NC, PIOB, GND2, PIOA.Pin 1(GND1) be with reference to ground 1; Pin 2(IO) be the 1-Wire bus interface, open-drain needs external pull-up resistor; Pin 3(NC) empty pin; Pin 4(PIOB) with pin 6(PIOA) be programmable I/O pin, open-drain is drawn on band is weak; Pin 5(GND2) with reference to ground 2, two GND pins need link together during application.

DS2413 is integrated two PIO pins and the 1-Wire interface that shows unique characteristics on single-chip.PIO is output as out and leaks output, can be operated in the 28V high voltage, and maximum conduction impedance is 20 ohm.Firm communication protocol is guaranteed the variation of PIO output zero defect.Every DS2413 has 64 long registration codes.This registration code has guaranteed unique identity code, can also be used for simultaneously the physical address of multiple spot 1-Wire network environment, in order to a plurality ofly be articulated in same bus from device, and separate work.From the 1-Wire bus, obtain power supply in parasitic mode from device.The application of DS2413 comprises accessory identification and control, system monitoring, general I/O.

DS2413 has two chief components: 64 registration codes and PIO control.Bus host must at first provide in seven ROM operational orders: 1) Read ROM, 2) Match ROM, 3) Search ROM, 4) Skip ROM, 5) Resume, 6) Overdrive-Skip ROM, 7) Overdrive-Match ROM.If carried out Overdrive ROM order under standard speed, device will enter fast mode, and all communications are after this all carried out with fast mode.After the intact ROM command function of successful execution, main frame just can send one of two PIO command functions PIO has been conducted interviews.All reading and writing datas all are that low level is preceding.DS2413 is integrated two PIO pins and the 1-Wire interface that shows unique characteristics on single-chip.Firm communication protocol is guaranteed the variation of PIO output zero defect.Meet 1-Wire from requirement on devices, every DS2413 has 64 long registration codes.This registration code guarantees unique identity code, can also be used for the physical address of multiple spot 1-Wire network environment simultaneously, in order to a plurality ofly be articulated on same the bus from device, and separate work.It obtains power supply in parasitic mode from the 1-Wire bus.The application of DS2413 comprises accessory identification and control, system monitoring, general I/O, LED control etc.DS2413 has two chief components: 64 registration codes and PIO control.

Every DS2413 has 64 unique ROM registration codes.Wherein, preceding 8 is family's sign indicating number of 1-Wire product, and ensuing 48 is the unique sequence number of each device, and last 8 is the CRC(cyclic redundancy check (CRC) of 56 of fronts) sign indicating number.The CRC of 1-Wire device produces by the multinomial generator of being made up of shift register and XOR gate (XOR), and this multinomial is: X8+X5+X4+1.More information about the 1-Wire cyclic redundancy check (CRC) of Dallas.Shift register is initialized as zero, and then the least significant bit since 8 family's sign indicating numbers moves into, and moves into 1 at every turn.After the 8th family's sign indicating number moves into, begin to move into sequence number; After the 48th bit sequence number moved into, the value in the shift register namely was crc value.Be noted that 8 CRC check sign indicating numbers that continue to move into DS2413 inside, if it is correct to receive data, then shift register will make zero.

Each PIO pin has an open-drain pull-down transistor, can bear the voltage of 28V.This transistor is by the control of PIO output latch, shown in Fig. 3-15.The PIO pin links to each other with the 1-Wire interface by the PIO control unit.

The 1-Wire bus system is by a bus host and one or morely form from device.In all were used, DS2413 was as using from device.Usually bus host is a microcontroller.Discussion about the 1-Wire bus system is divided into 3 parts: hardware configuration, handling process and 1-Wire signaling (signal type and sequential).The bus state of 1-Wire agreement during with particular time-slot comes the definition bus communication mode, and this particular time-slot originates in the trailing edge of the lock-out pulse that bus host sends.

The 1-Wire bus system has only defined a holding wire, and therefore each device that drives on the bus in the suitable time is very important.For making aforesaid operations be easy to realize, each output from device of receiving on the 1-Wire bus is necessary for open-drain or ternary output.The 1-Wire port of DS2413 is open-drain output, and its inner equivalent electric circuit is shown in Fig. 3-16.The multi-point bus system is by a 1-Wire bus and a plurality ofly form from device.DS2413 supports the 14.9kbps(maximum) standard traffic speed and 100kbps(maximum) high-speed communication speed.Notice that the data transmission bauds of traditional 1-Wire device under standard speed pattern and fast mode is respectively 16.3kbps and 142kbps.The resistance of pull-up resistor depends primarily on network size and loading condition.Under any velocity mode, it is the pull-up resistor of 2.2k ohm that DS2413 wants maximizing.The idle condition of 1-Wire bus is high level.If need to suspend communication for a certain reason, and require to communicate by letter in the time of to recover, bus must be placed idle condition.If do not place idle condition, and bus keeps the low level time to surpass 16 μ s(fast modes) or 120 μ s(standard speeds), all on the bus will be reset from device.

The key characteristic of DS2413 has: (1) open-drain programmable I/O pin, and support the maximum of 20mA to continue absorbing current and 28V maximum working voltage, the conducting resistance maximum of PIO pull-down transistor is 20 Ω; Closing the resistance break minimum value is 1M Ω.(2) obtain parasite power by 1-Wire, adopt single digital signal line, according to the 1-Wire agreement, with 14.9kbps or 100kbps speed and main-machine communication.(3) factory is 64 unique ROM sequence numbers of each device photoetching.(4) level switching point hysteresis and filtering optimization the service behaviour under the noise circumstance.(5) 1-Wire I/O pin can support the 28V rated DC current flat under the fault condition.(6) wide operating range: 0 ° of C 1-Wire voltage range to+70 ° of C is 2.8V to 5.25V.(7) 1-Wire I/O pin can bear higher ESD impact: representative value is 8kV under the HBM test condition, and TSOC encapsulation and TDFN encapsulation are provided.

Fig. 4 is MCU among the utility model embodiment and the connection diagram of 1-Wire bus network drive part.MCU and 1-Wire bus network drive part mainly are divided into 5 modules and design, and are respectively: single-chip minimum system module, power interface and Voltage stabilizing module, host computer communication module, infrared remote control module, 1-Wire bus network driver module.Next be to the method for attachment of each module and the detailed description of realization principle:

The single-chip minimum system module comprises: AT89S51 microcontroller chip, crystal oscillating circuit, VCC pull-up resistor circuit, reset circuit.It should be noted that the utility model usefulness P3.0 is as the input of I2C serial clock and DS2482-100 pin 4(SCL) link to each other, use P3.1 as the I/O of I2C serial data and pin 5(SDA) link to each other.Realize communicating by letter between MCU and the 1-Wire network-driven module.

That power interface and Voltage stabilizing module adopt is universal power adapter HWX-K50150A(input 100-240V, 50/60HZ, 350mA; Output 5V, 1.5A, 7.5W) and voltage stabilizing chip LM2930T-5.0.

The host computer communication module adopts RS232 communication interface MAX232 chip.MAX232/MAX232A reception/transmitter MAXIM the company of MAXIM company is in particular the standard that satisfies EIA/TEA2232E and designs, they are widely used in EIA/TIA2232E standard serial communication interface day by day, they have low in energy consumption, working power is single supply, external capacitor only is 0.1 μ F or 1 μ F, adopt the dip form, receiver is output as superiority such as tristate TTL/CMOS, be two groups of RS232 receiver transmitters, working power is+5V, the baud rate height, only need the electric capacity of external 0.1 μ F or 1 μ F, its price is low, can in the system that generally needs serial communication, use, the MAX232 periphery needs 4 electrochemical capacitors, be that internal electric source is changed required electric capacity, its value is 1 μ F/25V and should selects tantalum electric capacity for use and should try one's best close chip.

The infrared remote control module adopts the general Infrared Remote-Control Sending integrated circuit of WD6122.The WD6122 chip adopts the manufacturing of CMOS technology, at most can external 64 button, and three groups of dual buttons are arranged.Packing forms is SOP-24 and SOP-20.

The core of 1-Wire network-driven module is exactly 1-Wire chip DS2482-100, and its method of attachment and realization principle are above describing in detail, do not repeat them here.

Fig. 5 is the connection diagram of the 1-Wire bus node control section among the utility model embodiment.It should be noted that 1-Wire node control part just can finish by a 1-Wire bus with only being connected of MCU and 1-Wire bus network drive part, that is: DS2482-100 pin 2 links to each other with DS2413 pin 2, just can realize 1-Wire communication by software-driven again.1-Wire bus node control section mainly comprises two modules:

Relay module, this module adopt Schneider G2R-1A4 AC 220V relay.Built-in high capacity type light-emitting diode has two, four groups of transfer contact forms, has multiple leading foot mode, transparent dust cover, overall dimension 28*21.5*35.

The DS2413 module, its method of attachment and realization principle are above describing in detail, do not repeat them here.

The characteristics of comparing lighting controller of the present utility model with existing lighting controller have: (1) will control the node analog signal figureization, for intelligent lighting control provides condition.(2) utilize the 1-Wire bussing technique to save the I/O resource, system wiring is simple, and is with low cost.(3) utilize the Address Recognition technology to realize long distance, point-to-point addressable multichannel illumination control.(4) the design receiver of remote-control sytem is realized the illuminator wireless remote control.

It should be noted that at last: more than be the detailed description of the utility model design principle and method and facilities.Above-described embodiment is only in order to the technical solution of the utility model to be described but not limit it, although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that: it still can make amendment or be equal to replacement the technical solution of the utility model, and these modifications or be equal to replacement and also can not make amended technical scheme break away from the spirit and scope of technical solutions of the utility model.

Claims (4)

1. a bus illumination control apparatus that contains Address Recognition is characterized in that, comprises PC control part, MCU (micro-control unit) and 1-Wire bus network drive part and 1-Wire bus node control section;

Described PC control partly comprises host computer server and CAN bus, and the host computer server is by carrying out serial communication between CAN bus and the MCU;

Described MCU and 1-Wire bus network drive part comprise: MCU is connected with 1-Wire bus driver module (DS2482-100), but MCU by Infrared remote controller and the wireless connections of addressing remote control transmitter, 1-Wire bus driver module is connected with the 1-Wire bus;

Described 1-Wire node control part is served as by binary channels programmable I/O chip DS2413 by the 1-Wire bus, and connects 1-N switch drive module respectively; Each switch drive module connects controlled load and working power separately; Controlled load comprises lighting device, relay and indicator light.

2. a kind of bus illumination control apparatus that contains Address Recognition according to claim 1 is characterized in that described N is positive integer.

3. a kind of bus illumination control apparatus that contains Address Recognition according to claim 1, it is characterized in that, DS2482-100 chip in the described 1-Wire bus driver module is the bridge joint device of I2C bus and 1-Wire bus, can be directly with standard or fast the I2C main frame be connected, finish the I2C main frame and arbitrarily downstream 1-Wire bus from the bidirectional bus protocol conversion between the device.

4. a kind of bus illumination control apparatus that contains Address Recognition according to claim 1 is characterized in that the frequency maximum of described standard I 2C main frame is 100kHz; The frequency maximum of I2C main frame is 400kHz fast.

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