CN103781246A - Bus-type intelligent illumination system and method - Google Patents

Bus-type intelligent illumination system and method Download PDF

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Publication number
CN103781246A
CN103781246A CN201410016984.2A CN201410016984A CN103781246A CN 103781246 A CN103781246 A CN 103781246A CN 201410016984 A CN201410016984 A CN 201410016984A CN 103781246 A CN103781246 A CN 103781246A
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China
Prior art keywords
bus
circuit board
control
daughter board
light
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Pending
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CN201410016984.2A
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Chinese (zh)
Inventor
齐晓龙
李高清
张艺馨
赵智财
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Longdong University
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Longdong University
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Priority to CN201410016984.2A priority Critical patent/CN103781246A/en
Publication of CN103781246A publication Critical patent/CN103781246A/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

The invention discloses a bus-type intelligent illumination system and method. The system includes a light acquisition module, a human-body pyroelectric detection module, an illumination dimming module, a system control module and an upper-computer monitoring module. The invention also provides the bus-type intelligent illumination method, in which it is stimulated that the intelligent illumination system works under two modes: a manual mode and an automatic mode. The bus-type intelligent illumination system has the characteristics of being high in traffic rate, great in openness, short in message, high in error correction capability, simple to control, high in expanding capability and low in system cost so that the system is suitable for popularization and application.

Description

A kind of bus intelligent illuminator and method
Technical field
The present invention relates to a kind of intelligent illuminating system, specifically, relate to a kind of bus intelligent illuminator and method.
Background technology
Traditional control method is that controlled equipment line is introduced to control room, so not only causes power cable to lay too much, has increased cost of investment, but also has greatly increased the radiated interference in lamp loop, and space electromagnetic environment has been caused to pollution.
Intelligent lighting system provides new way-microcomputer type lamp light control system for modern architecture building lighting.Its Adoption Network control technology, makes the power circuit of illuminating lamp can be no longer through control room, and directly introduces ceiling or packway.This control method not only can be controlled the brightness of light easily, has also reduced power circuit and corresponding establishment investment, has reduced the radiated interference in lamp loop, and can make lamp loop adopt bus mode to connect up, and circuit is regular, is convenient to installation and maintenance.But in the microcomputer type lamp light control system using at present, because network service adopts the communication mode such as RS-232, RS-485,20mA electric current loop mostly, thereby the problem such as ubiquity communication distance is short, data transmission bauds is slow, the error rate is high, poor reliability.
Summary of the invention
In order to overcome the defect existing in prior art, the invention provides the bus intelligent illuminator that a kind of traffic rate is high, opening is good, message is short, error correcting capability is strong and control simple, extended capability is strong, system cost is low.Its technical scheme is as follows:
A kind of bus intelligent illuminator, comprises light acquisition module, human body pyroelectricity detection module, illumination light-adjusting module, system control module and host computer monitoring modular:
Described light acquisition module, for realizing the detection to lamp source surrounding environment light, need be told the brightness degree of ambient light;
Described human body pyroelectricity detection module adopts pyroelectric infrared sensor can detect with noncontact form the infrared ray of human body radiation, and is changed into voltage signal;
Described illumination light-adjusting module adopts chopped mode AC voltage adjusting circuit, rely on the width that changes control impuls to realize the adjusting to lighting tube brightness, be so-called PWM light modulation method, this light-dimming method is mainly to utilize to regulate the pulse duty factor of the power switch pipe in AC voltage adjusting circuit to carry out light modulation.
Described system control module comprises main control unit, circuit board and daughter board three-decker, between main control unit and circuit board, communicates by letter, and utilizes CAN bus to realize;
Described host computer monitoring modular is used for the demonstration of the operating state in the each lamp source to lighting control networks of realizing, can be by the opening and closing in each lamp source in this software control lighting mains, and the operating state of simulation hand switch.
Further preferably, 255 daughter boards of the maximum carry of circuit board in described system control module, wiring distance is less than 400m, and communication baud rate is lower than 4800bps.
Further preferably, system control module comprises main control unit, circuit board and daughter board three-decker, between main control unit and circuit board, communicates by letter, and utilizes CAN bus to realize; Between circuit board and daughter board, communicate by letter, utilize RS485 bus to realize; Each circuit board is controlled at most 255 lamp sources by daughter board, adopts PWM light modulation method, and this light-dimming method is mainly to utilize to regulate the pulse duty factor of the power switch pipe in AC voltage adjusting circuit to carry out light modulation.Human body pyroelectricity detection module adopts pyroelectric infrared sensor can detect with noncontact form the infrared ray of human body radiation, must mix Fresnel Lenses at pyroelectric infrared sensor.
A kind of bus intelligent means of illumination, comprise the following steps: after system powers on, system is finished the work and is carried out mode of operation selection after pattern configurations, after selecting manual mode, detect and whether have user to operate, when user detects and whether carries out pattern switching in the time operating, send operational order if do not carried out when pattern is switched to control unit, control unit is resolved after receiving instruction, resolving backward particular loop plate forwards, circuit board is accepted to resolve after instruction, send instruction to daughter board afterwards, daughter board receives rear parsing and carries out corresponding operating, complete once-through operation,
After selecting automatic mode, master control borad is patrolled and examined each circuit board and daughter board, judge whether normally to work, if have fault and fault message be uploaded to PC, need people for keeping in repair, if all circuit boards and daughter board can normally be worked, equally state information is uploaded, sent out operational order to control unit, enter operating state.
Further preferably, each working link is closed loop working method, gives in real time PC detection module feedback loop plate U2 and daughter board U3 operating state, when detecting when circuit board or daughter board have fault, information is uploaded to PC, reminds people to carry out repair and maintenance; Turn on lights source when light intensity does not meet preset value when human body pyroelectricity infrared sensor detects signal in normal operation.
Beneficial effect of the present invention: can hang 255 daughter boards below each circuit board, in installation process, need not add again the directly carry daughter board that just connects up, reduce the cost of investment of building building lighting system, reduce the pollution of space electromagnetic environment, reduce the complexity that power circuit is laid, improve the reliability of illuminator, for modern architecture building lighting provides new way-microcomputer type lamp light control system.Its Adoption Network control technology, makes the power circuit of illuminating lamp can be no longer through control room, and directly introduces ceiling or packway.This control method not only can be controlled the brightness of light easily, has also reduced power circuit and corresponding establishment investment, has reduced the radiated interference in lamp loop, and can make lamp loop adopt bus mode to connect up, and circuit is regular, is convenient to installation and maintenance.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of bus intelligent illuminator of the present invention;
Fig. 2 is bus intelligent means of illumination flow chart of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, technical scheme of the present invention is described in more detail.
With reference to Fig. 1, a kind of bus intelligent illuminator, comprises daughter board (U3 unit in Fig. 1), circuit board (U2 unit in Fig. 1), control board (U1 unit in Fig. 1), host computer monitoring modular and lamp source (W1 unit in Fig. 1):
Daughter board (U3 unit in Fig. 1) is realized collection to fluorescent tube surrounding environment light and the detection of human body pyroelectricity, and controls in real time the output brightness of fluorescent tube by image data.Realize principle:
Because the resistance of photo resistance changes with the change of surrounding environment light, can accurately judge lamp source ambient light around by the design system MCU of bleeder circuit, the design intends adopting photo resistance testing environment light.
Described human body pyroelectricity detection module adopts pyroelectric infrared sensor can detect with noncontact form the infrared ray of human body radiation, and is changed into voltage signal; Pyroelectric sensor have cost low, do not need with the emission source such as infrared ray or electromagnetic wave, highly sensitive, the features such as installation can flow.When actual use, before pyroelectric sensor, need to install Fresnel Lenses, can greatly improve like this receiving sensitivity, increase distance and the scope of detecting.If experiment showed,, pyroelectric infrared sensor does not add Fresnel Lenses, and it detects apart from being only 2m left and right; And mix after Fresnel Lenses, it detects apart from more than rising to 10m.
Described illumination light-adjusting module: illumination light-dimming method: light modulation can be divided into simulation light modulation and the large class of digital dimming two by the control method using.Can be divided into again Fieldbus Control and the large class of computer network brightness adjustment control two by the implementation method of control range size.
When native system design, adopt chopped mode AC voltage adjusting circuit, rely on the width that changes control impuls to realize the adjusting to lighting tube brightness, i.e. so-called PWM light modulation method, this light-dimming method is mainly to utilize to regulate the pulse duty factor of the power switch pipe in AC voltage adjusting circuit to carry out light modulation.Chopped mode AC voltage adjusting circuit, is directed to resistive load, and when through row Regulation Control, input power factor approaches 1, and the operating efficiency of circuit is high, can reduce to greatest extent system power dissipation.And the alternating current of regulation output, only contains the high order harmonic component of control impuls frequency integral multiple, can effectively reduce like this burden of filter, thereby reduce design difficulty and the volume of filter.
Circuit board (U2 unit in Fig. 1) is the circuit controls plate of system, its inside is the circuit controls module that 8 single-chip microcomputer MC9S08DZ60 of high-performance of being produced by Freescale company form, mainly bearing of task is to receive the data from U3 in daughter board by RS485 bus, daughter board information is carried out after dissection process, processing structure is sent to system master unit U1 by CAN protocol packing again.
Control board (U1 unit in Fig. 1) is system master unit, its inside is that 16 the single-chip microcomputer MC9S12XS128 of high-performance that produced by Freescale company are the data acquisition process unit that core forms, there is CAN bus communication function, mainly bear the task of two aspects: 1, process the information from each circuit board U2, and result is uploaded to PC by CAN bus, PC monitoring of software can be shown to user by operating structure intuitively, so that user's queried access; 2, main control unit can receive the control command that user issues by PC monitoring of software, and by control command dissection process, finally the information of handling is sent to specific circuit board U2.
Upper computer software detection module (PC unit in Fig. 1), is shown to user by operating structure, intuitively so that user's queried access; The control command that user issues by PC monitoring of software.
Described system control module comprises main control unit, circuit board and daughter board three-decker, between main control unit and circuit board, communicates by letter, and utilizes CAN bus to realize; Between circuit board and daughter board, communicate by letter, utilize RS485 bus to realize; In other words, each circuit board can be controlled 255 lamp sources.This structure, is conducive to further expanding of system.
When native system design,, adopt the MC9S12 single-chip microcomputer of Freescale company production as the control core of main control unit.And with respect to main control unit, the demand of circuit board and daughter board is larger, in the design, for saving the reliability of development cost and raising system, intend adopting the control core chip of STC12C2052 as circuit board and daughter board.
Described host computer monitoring modular is used for the demonstration of the operating state in the each lamp source to lighting control networks of realizing, can be by the opening and closing in each lamp source in this software control lighting mains, and the operating state of simulation hand switch.
Fig. 1 is the structured flowchart of bus intelligent illuminator, in Fig. 1, U1 unit is system master unit, its inside is that 16 the single-chip microcomputer MC9S12XS128 of high-performance that produced by Freescale company are the data acquisition process unit that core forms, there is CAN bus communication function, mainly bear the task of two aspects: 1, process the information from each circuit board U2, and result is uploaded to PC by CAN bus, PC monitoring of software can be shown to user by operating structure intuitively, so that user's queried access; 2, main control unit can receive the control command that user issues by PC monitoring of software, and by control command dissection process, finally the information of handling is sent to specific circuit board U2.The circuit controls plate that in Fig. 1, U2 unit is system, its inside is the circuit controls module that 8 single-chip microcomputer MC9S08DZ60 of high-performance of being produced by Freescale company form, mainly bear the task of two aspects: 1, receive the data from U3 in daughter board by RS485 bus, daughter board information is carried out after dissection process, processing structure is sent to system master unit U1 by CAN protocol packing again.In Fig. 1, U3 unit is system daughter board, its inside is the intelligent control switch being made up of single-chip microcomputer, human body heat-releasing electric transducer and light-sensitive element, mainly bears the task of two aspects: the human body heat-releasing signal of telecommunication and the ambient light signal that 1, can gather daughter board environment of living in; 2, control the break-make of ac bus, thereby complete the unlatching to lighting apparatus W1 or extinguish; 3, can realize the mutual of information by RS485 bus and circuit board.255 daughter boards of the maximum carry of circuit board in described system control module.Adopt system shown in Figure 1 network topology structure, be easy to the expansion of the system that realizes.Between control board and circuit board, exchanges data realizes by CAN bus, can effectively improve the data transfer rate of system.Under system control command, pass, status data uploads and all passes through CAN bus and RS485 bus and realize, can reduce greatly the error rate of communication, thereby improve the reliability of system.
A kind of bus intelligent means of illumination, comprises the following steps: in the method, regulation intelligent illuminating system is operated under two kinds of patterns, i.e. manual mode and automatic mode.Its workflow and step are as shown in Fig. 2 bus intelligent means of illumination flow chart.When system works is being manually, system clock is waited for the triggering of user instruction, once there be user instruction interventional systems, first system judges whether privileged instruction (mode of operation is switched genus privileged instruction), if system will realize the switching of system works pattern on monitoring of software, command information will be packed and sent to system control panel U1 through CAN bus if not monitoring of software, specific circuit board U2 is processed and be transmitted to system control panel to the data that receive, circuit board is the Data Analysis receiving, and is transmitted to corresponding daughter board U3; Daughter board U3 receives after the data from circuit board, to Data Analysis, obtains instruction details, and according to instruction, lighting apparatus is carried out and operated accordingly or upload environmental state information (comprising human body pyroelectricity data, light intensity data).When system works is during at automatic mode, system control panel issues broadcasting instructions to each circuit board, requires each circuit board to upload the state information of each daughter board in its loop.If each daughter board operating state is normal in loop, this is that the state information of each daughter board is uploaded to monitoring of software by system control panel meeting, monitoring of software can refresh current display page after receiving uploading data, so that the operation of user's Real Time Observation lighting apparatus; If in loop there is fault in certain daughter board, the circuit board at this daughter board place will be controlled CAN bus, in time fault message is uploaded to system control panel, system control panel again by data retransmission to monitoring of software, when monitoring of software receives after fault message, to refresh in time the page, and send warning message at host computer, reminding user.In the above-mentioned course of work, the opening and closing of daughter board control lighting apparatus are under intelligent work pattern, only have when having people to get involved in daughter board environment of living in, and ambient light intensity are during lower than system configuration parameter, Lighting Design just can be opened, otherwise lighting apparatus cuts out.Once lighting apparatus is opened, daughter board will detect the light intensity of environment of living in and whether someone gets involved in real time, and according to detection data, regulates the brightness of lighting apparatus, thereby realize intelligentized control by PWM mode.In the whole course of work, user instruction also can be got involved, only privileged instruction (pattern switching command), otherwise system is not carried out without exception.In the time running into privileged instruction, finish the work on the monitoring software switching of pattern of system.
CAN bus baud rate adopts 1Mbps, and RS485 bus baud rate adopts 4800bps.
The above; it is only preferably embodiment of the present invention; protection scope of the present invention is not limited to this; any be familiar with those skilled in the art the present invention disclose technical scope in, the simple change of the technical scheme that can obtain apparently or equivalence replace all fall within the scope of protection of the present invention.

Claims (5)

1. a bus intelligent illuminator, is characterized in that, comprises light acquisition module, human body pyroelectricity detection module, illumination light-adjusting module, system control module and host computer monitoring modular:
Described light acquisition module, for realizing the detection to lamp source surrounding environment light, need be told the brightness degree of ambient light;
Described human body pyroelectricity detection module adopts pyroelectric infrared sensor can detect with noncontact form the infrared ray of human body radiation, and is changed into voltage signal;
Described illumination light-adjusting module adopts chopped mode AC voltage adjusting circuit, relies on the width that changes control impuls to realize the adjusting to lighting tube brightness, is mainly to utilize to regulate the pulse duty factor of the power switch pipe in AC voltage adjusting circuit to carry out light modulation;
Described system control module comprises main control unit, circuit board and daughter board three-decker, between main control unit and circuit board, communicates by letter, and utilizes CAN bus to realize;
Described host computer monitoring modular is used for the demonstration of the operating state in the each lamp source to lighting control networks of realizing, can be by the opening and closing in each lamp source in this software control lighting mains, and the operating state of simulation hand switch.
2. bus intelligent illuminator according to claim 1, is characterized in that, 255 daughter boards of the maximum carry of circuit board in described system control module.
3. bus intelligent illuminator according to claim 1, is characterized in that, system control module comprises main control unit, circuit board and daughter board three-decker, between main control unit and circuit board, communicates by letter, and utilizes CAN bus to realize; Between circuit board and daughter board, communicate by letter, utilize RS485 bus to realize; 255 lamp sources of each circuit board control, adopt PWM light modulation method, utilize and regulate the pulse duty factor of the power switch pipe in AC voltage adjusting circuit to carry out light modulation, human body pyroelectricity detection module adopts pyroelectric infrared sensor can detect with noncontact form the infrared ray of human body radiation, must mix Fresnel Lenses at pyroelectric infrared sensor.
4. a bus intelligent means of illumination, it is characterized in that, comprise the following steps: after system powers on, system is finished the work and is carried out mode of operation selection after pattern configurations, after selecting manual mode, detect and whether have user to operate, when user detects and whether carries out pattern switching in the time operating, send operational order if do not carried out when pattern is switched to control unit, control unit is resolved after receiving instruction, resolving backward particular loop plate forwards, circuit board is accepted to resolve after instruction, send instruction to daughter board afterwards, daughter board receives rear parsing and carries out corresponding operating, complete once-through operation,
After selecting automatic mode, master control borad is patrolled and examined each circuit board and daughter board, judge whether normally to work, if have fault and fault message be uploaded to PC, need people for keeping in repair, if all circuit boards and daughter board can normally be worked, equally state information is uploaded, sent out operational order to control unit, enter operating state.
5. bus intelligent means of illumination according to claim 4, it is characterized in that, each working link is closed loop working method, give in real time PC detection module feedback loop plate U2 and daughter board U3 operating state, when detecting when circuit board or daughter board have fault, information is uploaded to PC, reminds people to carry out repair and maintenance; Turn on lights source when light intensity does not meet preset value when human body pyroelectricity infrared sensor detects signal in normal operation.
CN201410016984.2A 2014-01-15 2014-01-15 Bus-type intelligent illumination system and method Pending CN103781246A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107683005A (en) * 2017-08-30 2018-02-09 湖南文理学院 A kind of street lamp safety monitoring system
CN109041365A (en) * 2018-06-27 2018-12-18 重庆卓创国际工程设计有限公司 Intelligent lighting system

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101511144A (en) * 2009-03-24 2009-08-19 重庆乔亚电子有限公司 LED automatic control system
CN101742780A (en) * 2010-01-22 2010-06-16 上海恩济节能科技有限公司 CAN bus-based intelligent illumination control system
CN102938950A (en) * 2011-08-16 2013-02-20 上海广茂达光艺科技股份有限公司 Light-emitting diode (LED) modularization street lamp control system
CN202931654U (en) * 2012-12-07 2013-05-08 山大华天(烟台)电子科技有限公司 Intelligent lighting control management system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101511144A (en) * 2009-03-24 2009-08-19 重庆乔亚电子有限公司 LED automatic control system
CN101742780A (en) * 2010-01-22 2010-06-16 上海恩济节能科技有限公司 CAN bus-based intelligent illumination control system
CN102938950A (en) * 2011-08-16 2013-02-20 上海广茂达光艺科技股份有限公司 Light-emitting diode (LED) modularization street lamp control system
CN202931654U (en) * 2012-12-07 2013-05-08 山大华天(烟台)电子科技有限公司 Intelligent lighting control management system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107683005A (en) * 2017-08-30 2018-02-09 湖南文理学院 A kind of street lamp safety monitoring system
CN109041365A (en) * 2018-06-27 2018-12-18 重庆卓创国际工程设计有限公司 Intelligent lighting system

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Application publication date: 20140507