CN206470569U - A kind of wisdom classroom electric appliance on-off control system based on arm processor - Google Patents

Abstract

The utility model is related to a kind of wisdom classroom electric appliance on-off control system based on arm processor.Including some sensor nodes：Installed in monitored area, it may be difficult to which the physical quantity of perception changes into electricity, and electric quantity signal is spread out of；Aggregation node：With all sensor node wireless connections, for the conversion of communication, the electric quantity signal of radio communication is changed into wire signal, while being stored and being handled to data；Remote server：It is connected with aggregation node, for monitoring the physical quantity of wireless senser transmission, while issuing the order of monitoring according to the requirement of network and system, make sensor node according to the real-time gathered data of requirement of user, management node will also be responsible for substantial amounts of data storing work, set up database；The utility model not only greatly reducing circuit, and signal stabilization using wireless sensor network, easy for installation.And it is easy to safeguard, financial cost may be mounted at the occasion of bad environments than relatively low.

Description

A kind of wisdom classroom electric appliance on-off control system based on arm processor

Technical field

The utility model is related to a kind of on-off control system, more particularly, to a kind of wisdom classroom based on arm processor Electric appliance on-off control system.

Background technology

By carrying out network analysis to the current teaching demand of school, with reference to the development trend of present colleges teaching information With the development plan of institute, the existing resource of institute is integrated, mobile technology, sensing technology, artificial intelligence technology, net is made full use of Network technology, multimedia technology come equip classroom and improve academic environment, reconstruct one suitable Students ' Learning and teachers ' teaching it is new Classroom environment so that the content of courses further optimizes, education resource obtains the interactive further reinforcement of more convenient, classroom instruction, Classroom layout is more intelligent with electrical management so that teaching process real time reaction Students ' Learning state, and can be according to learner Study situation regulation teaching rhythm, final lifting professional personnel training quality.Based on this with target, wisdom classroom meet the tendency of and Raw, wisdom classroom is based on mobile technology, sensor technology and artificial intelligence technology and network technology.Wisdom classroom bag The management of management, student containing classroom and teacher's management, wherein be the problem studied all the time to the control of classroom electrical equipment, this Application is based on this point and set out, and applies for a set of intelligent control switched to classroom.

The intelligent control of classroom switch mainly includes switch control, Radio Transmission Technology, the research of aggregation node.The application The wireless sensor technology of control composition switch control together with Radio Transmission Technology synthesis will be switched.Most of traditional sensor Using wired form, so when mounting arrangements sensor, there is many connections, not only to consider its wiring into This, and the interference being also contemplated that between its signal.Therefore traditional sensor network can cause financial cost high, swinging of signal It is fixed to wait many difficulties.With computer technology, sensor technology, the development of mechanics of communication and industrial control technology, wirelessly Sensor network just arises at the historic moment.Wireless sensor network not only greatly reducing circuit, and signal stabilization, installation side Just.And it is easy to safeguard, financial cost may be mounted at the occasion of bad environments than relatively low.

Utility model content

Above-mentioned technical problem of the present utility model is mainly what is be addressed by following technical proposals：

A kind of wisdom classroom electric appliance on-off control system based on arm processor, it is characterised in that including：

Some sensor nodes：The sensor being connected including 8051 series monolithics and with 8051 series monolithics, peace Mounted in monitored area, it may be difficult to which the physical quantity of perception changes into electricity, and electric quantity signal is spread out of；

Aggregation node：With all sensor node wireless connections, for the conversion of communication, by the electricity of this radio communication Amount signal changes wire signal into, while being stored and being handled to data；

Remote server：It is connected with aggregation node, for monitoring the physical quantity of wireless senser transmission, while according to network The order of requirement issue monitoring with system, makes sensor node according to the real-time gathered data of requirement of user, management node Also to be responsible for substantial amounts of data storing work, set up database, substantial amounts of data are managed, facilitate later access and school It is right.

In a kind of above-mentioned wisdom classroom electric appliance on-off control system based on arm processor, the sensor includes red Outer sensor or laser sensor.

In a kind of above-mentioned wisdom classroom electric appliance on-off control system based on arm processor, aggregation node includes processing Device, and be connected with processor Ethernet transmission unit, memory cell, wireless transmission unit and for aggregation node Power supply and the peripheral circuit of data transfer.

In a kind of above-mentioned wisdom classroom electric appliance on-off control system based on arm processor, the processor model is LPC2214；Ethernet transmission unit model RTL8019；Wireless transmission unit model CC2530；Memory cell includes SDRAM and FLASH；Processor is connected by serial ports and jtag port with server.

In a kind of above-mentioned wisdom classroom electric appliance on-off control system based on arm processor, the server includes clothes Business computer and some clients being connected with service computer.

In a kind of above-mentioned wisdom classroom electric appliance on-off control system based on arm processor, peripheral circuit includes power supply Power circuit, hardware reset circuit, jtag interface circuit, memory circuitry and communication interface circuit.

In a kind of above-mentioned wisdom classroom electric appliance on-off control system based on arm processor, the power circuit includes Managing chip one, managing chip two and JP1 power interfaces, the pin 1 of the JP1 power interfaces be grounded and with managing chip one Pin ADJ connections, pin 2 is connected with the pin IN of managing chip one, be parallel between the pin 1 and pin 2 of JP1 power interfaces electric capacity CT1 and Electric capacity CT2, resistance R1 is jumped to after being connected with light emitting diode DS1 between the pin 1 of JP1 power interfaces and pin 2；Managing chip one Pin TAB and pin OUT docking after as output, be parallel with electricity between the pin 1 of JP1 power interfaces and the pin OUT of managing chip one Hold CT3, resistance R2 jumped to after being connected with light emitting diode DS2 JP1 power interfaces pin 1 and managing chip one pin OUT it Between；The pin IN of managing chip two is connected with the pin IN of managing chip one；After pin TAB and pin the OUT docking of managing chip two As output, the pin ADJ of managing chip two is grounded, in parallel between the pin ADJ of managing chip two and the pin OUT of managing chip two There are electric capacity CT4, resistance R3 to jump to the pin ADJ of managing chip two and the pin of managing chip two after being connected with light emitting diode DS3 Between OUT；The model LM1084 of managing chip one, the model LM1117 of managing chip two.

In a kind of above-mentioned wisdom classroom electric appliance on-off control system based on arm processor, hardware reset circuit includes Reset chip one, reset chip two and reset key RST, wherein the model S708S of reset chip one, the model of reset chip two 74AC125D；Wherein reset key RST pin 1,2 is connected with the pin 3,4 of reset chip one simultaneously after docking, reset key RST pin 3rd, it is connected simultaneously with the pin 1 of reset chip one after 4 docking；The pin 7 of reset chip one is connected with the pin 4 of reset chip two；Reset The pin 2,5,9,12,7 of chip two is grounded；The pin Y1 of reset chip two meets the resistance R4 and light emitting diode DS4 being sequentially connected in series；It is multiple The pin Y2 of position chip two meets the resistance R5 being sequentially connected in series；The pin Y3 of reset chip two meets the resistance R5 being sequentially connected in series；Reset chip One pin 1 and pin 10 is docked.

In a kind of above-mentioned wisdom classroom electric appliance on-off control system based on arm processor, communication interface circuit includes Ethernet interface circuit and serial port circuit；Serial port circuit includes serial port module, model MAX3232CSE, the pin 15 of serial port module Ground connection, pin 6 connects and is grounded after electric capacity C4, and pin 12 meets the light emitting diode DS6 and resistance R9 being sequentially connected in series, and pin 11 connects what is be sequentially connected in series Light emitting diode DS5 and resistance R8；Pin 3 is connected by electric capacity C1 with pin 1, and pin 4 is connected by electric capacity C2 with pin 5,；Pin 2 and logical Electric capacity C3 is crossed to be connected with pin 16；Pin 13 and pin 14 connect serial interface.

Switch applied to wisdom classroom is controlled, by wireless sensor node come the closing of controlling switch and opening, together When the brightness of light is perceived by optical module, controlled with the switch for realizing classroom, whole system is made up of four parts：It is sensor Node, aggregation node, server and client side, they collectively form four-layer structure.

Therefore, the utility model has the following advantages that：Wireless sensor network not only greatly reducing circuit, Er Qiexin Number stabilization, it is easy for installation.And it is easy to safeguard, financial cost may be mounted at the occasion of bad environments than relatively low.

Brief description of the drawings

Accompanying drawing 1 is wireless sensor network structure of the present utility model.

Accompanying drawing 2 is aggregation node hardware chart of the present utility model.

Accompanying drawing 3 is processor LPC2214 structured flowcharts of the present utility model.

Accompanying drawing 4 is power circuit diagram of the present utility model.

Accompanying drawing 5 is hardware reset circuit figure of the present utility model.

Accompanying drawing 6 is jtag interface circuit diagram of the present utility model.

Accompanying drawing 7 is Flash of the present utility model and LPC2214 wiring diagrams.

Accompanying drawing 8 is ISSIS61LV25616AL of the present utility model and LPC2214 connection figures.

Accompanying drawing 9 is network transformer wiring diagram of the present utility model.

Accompanying drawing 10 is serial ports connection diagram of the present utility model.

Embodiment

Below by embodiment, and with reference to accompanying drawing, the technical solution of the utility model is described in further detail.

Embodiment：

1. general structure.

2.1 wireless senser structures.

Wireless sensor network is a kind of brand-new Information acquisition technology.It is laid in the substantial amounts of tool of specific region The sensor node for having wireless communication ability and perception is that the mostly important and basic composition of wireless sensor network will Element.It can complete specific task according to ambient conditions, and the conscientious analyzing and processing of Surveillance center is transferred to by the communication technology, Reach the target of monitoring and control.Have that scale is big, cost is low, node hardware is simple, low in energy consumption, self-organizing etc. is wireless senser The main feature of network, to ambient parameters, such as temperature, intensity of illumination, special gas are perceived and analyzed, and are connection meters The Suan Ji worlds and the important bridge of real physical world.

The three-level network system that its totality of wireless sensor network is made up of sensor node, aggregation node and Terminal Server Client System, as shown in Figure 1.

Sensor node is typically the system using 8051 grade series monolithics as kernel, because sensor is arranged on monitoring section Domain, it is desirable to small volume, energy-conservation, therefore its disposal ability, storage capacity and communication capacity are all restricted, and relatively very It is weak.But sensor node plays very important effect in the entire network, it is directly associated with the object of monitored area, It is that the physical quantity for being difficult to perceive changes into electricity by some, therefore the quality of node directly affects the accuracy monitored.Often Individual sensor node has two kinds of functions, and one is terminal node function, and another is the function of router.Not only to perceive pair As the change of parameter, but also data stored, managed, merged and be transmitted.

Aggregation node is directly powered due to not limited by power supply and volume using civil power, is in general all peace Mounted in the region away from monitoring, volume is unrestricted, thus aggregation node disposal ability, storage capacity and communication capacity all Very strong, it is mainly responsible for the conversion of communication, because radio communication is limited by distance, with its communication quality of the extension of distance Decline therewith, and this radio communication is converted into wired form by aggregation node, not only communication distance is unrestricted, Er Qietong Believe that steady quality is reliable.Aggregation node will also carry out storage and necessary processing to data simultaneously.

Management node is the window of human-computer exchange, for monitoring the physical quantity of wireless senser transmission, while according to network The order of requirement issue monitoring with system, makes sensor node according to the real-time gathered data of requirement of people, management node Also to be responsible for substantial amounts of data storing work, set up necessary database, substantial amounts of data are managed, facilitate later look into Read and proofread.The application is managed using association System x3650 M4 (7915I51) as server.

The overall plan of 2 aggregation nodes.

The selection of 2.1 wireless communication protocols.

802.15.4 agreement (i.e. Zigbee protocol) is well positioned to meet the communication of wireless sensor network, because it is defined 250kbps low complex degree, with super low-power consumption.And the physical layer and MAC of the wireless data communication protocol of ultralow price Layer, and meet wireless security communication.This standard largely considers wanting for wireless sensor network in application Ask.Sufficient consideration is especially all made in terms of power consumption, in terms of safety problem and in simultaneous techniques.In addition, ZigBee is also propped up The communication of multiple frequency ranges is held, carrier wave frequency range, two frequency ranges of 868MHz and 915MHz for having 2.4GHz respectively, and data communication speed Rate is alternatively, be not a fixed value, to be so more beneficial for the application of wireless sensor network.Comprehensive Zigbee's is excellent The need for point and our practical applications, consensus standard of the IEEE 802.15.4 agreements as radio communication will be used at us.

The selection of 2.2 processors.

ARM7 Series of MCU includes a variety of microprocessors, there is the following type：ARM7TDMI, ARM720T, ARM7TDMI-S, ARM7EJ.In this five type, used using ARM7TDMI as the processor of kernel most.The application is used LPC2214 chips be exactly to use ARM7TDMI-S for kernel, LPC2214 supports the instruction code of 16 and 32, is conducive to Exploitation of the developer to LPC2214 programs, inside is containing abundant storage device, and the storage for program and data provides pole Big guarantee, the Flash memories for having high speed, storage speed is fast, improves the execution efficiency of code, and such real-time is just very It is high.The Thumb instructions of 16 are supported, not only required memory space is small for the instruction of 16, under same space, can store more Code, and instruction execution faster, performance is really the same.Multiple timers and counter are included, can be determined simultaneously When and count interrupt response.Containing PWM passages, great convenience is provided for the control to motor, motor can be realized Stablize smooth speed governing.Therefore in large scale industry control, modern medical service device, modern commerce field all uses LPC2214 conducts Its main control chip.Because LPC2214 has been internally integrated interior serial communication interface, well should also have in the communications field With as having good application in occasions such as communication gate, protocol converter, embedded software modems.Comprehensive wireless The requirement of sensor network aggregation node, the application is used as processor using LPC2214.

2.3. the selection of operating system.

Computer system is made up of hardware and software, does not have this concept of operating system in the early stage of development, and user uses prison Control program uses computer.With the development of computer technology, hardware, the software resource of computer system are also more and more rich Richness, monitoring programme has not adapted to the requirement of computer application.Then further develop in middle nineteen sixties monitoring programme Form operating system (Operating System).Till now, it is widely used to have three kinds of operating systems i.e. multiple tracks batch Handle operating system, time sharing operating system and real time operating system.

The selection of embedded OS is an important process of early stage application process, and this will have influence on the engineering later stage Issue and the maintenance of software, because μ C/OS-II have its unique property, with reference to the requirement of ARM7 processors, the application choosing μ C/OS-II are selected as the operating system of wireless sensor network.

The overall application scheme of 2.4 aggregation nodes.

According to applied analysis above to aggregation node, with reference to the exploitation application process of embedded system, conjunction have selected After suitable wireless sensor protocol, processor, embedded OS, so as to draw particular hardware and the software Shen of aggregation node Please scheme, Fig. 2 is detailed soft-hardware configuration figure.Several chapters will be described in detail and specifically according to this thinking below Realize.

3rd, detailed hardware application.

3.1 LPC2214 processors are summarized.

LPC2214 has a good function, that is, can realize " zero-waiting access " high speed flash memory capability, this is mainly Realized due to on-chip memory load-on module, therefore the efficiency that instruction is performed is just very high.Meeting the base of high-performance low-power-consumption On plinth, code protection mechanism on enhanced communication function and piece is improved.Because the scope of its serial communication interface is very wide, therefore There is very wide application in fields such as communication gate, protocol converter, embedded software modems.The PWM of 6 passages can more be used In control fields such as complicated electric machine speed regulations.

LPC2214 CPU, which is one, supports 16/32 ARM7TDMI-S processor of real-time simulation and tracking, at this Reason device is mainly used in the application harsher to power consumption and cost requirement.Due to having used three class pipeline technology, i.e. fetching, having translated Code, execution, realize the efficient execution of instruction.ARM7TDMI-S processors are also propped up except supporting 32 ARM instruction sets of standard Hold the THUMB instruction set of 16, THUMB codes are only the 65% of ARM code sizes, but its performance is equivalent to being connected to 16 The 160% of the identical arm processor performance of bit memory system.

External oscillator produces piece mountain system clock by frequency multiplication of phase locked loop, and its maximum operating frequency is up to 60MHZ.In piece Memory Controller is by single local bus and cpu i/f, the purpose for the arrangement is that in order to avoid bus arbitration not The latent period in delay and bus that certainty, bus are obtained, so as to obtain higher real-time performance.Interrupt control unit and outer Portion's bus control unit is by AMBA high performance bus（AHB）Realize and support 8/16/ with cpu i/f, external bus controller 32 external memory storages.

Peripheral hardware is by VPB buses in LPC2214 pieces, and AHB to VPB bridge is connected with AHB buses.LPC2214 microprocessors The structured flowchart of device such as Fig. 3

3.2 basic peripheral circuits.

3.2.1 power circuit.

Because voltage needed for LPC2214 kernels is 1.8V, I/O mouthfuls of voltages are 3.3V, and ATR8019AS supply voltage is 5V, CC2530 wireless transmit/receive units are also required to provide 5V voltage, and the chip such as SST39VF1601, JTAG, 74AC125D is required to 3.3V voltage is provided, then whole system will provide the voltage of 3 clock grades.In view of actual application environment and the stabilization of power supply Property, externally fed used by 220VAC, and 50Hz to+5VDc Switching Power Supply is powered.External power source connect through JP1 electricity Source interface is carried out.3.3V and 1.8V voltage is transformed into each chip power supply by LM1084 and LM1117.Its power supply connects Line chart such as Fig. 4.

3.2.2 reset circuit.

Reset key of the hardware reset on aggregation node circuit board is produced, and positioned at the right side of circuit board, is consecutively pressed reset After key three seconds, effectively, it is that low level is effective to LPC2214 hardware reset signal RESET, so that system, which enters, resets shape State.At this moment, only oscillator is in running order, and all chips and pin are in reset state, and low level is exported from RESET. The hardware reset circuit application of its aggregation node is as shown in Figure 5.

3.2.3 jtag interface circuit.

Jtag interface is not simply simply to contain several connection jaws, and its back panel wiring is also very complicated, but its Mainly include two parts, one is JTAG connectivity ports, and another part is internal core controller.Conform generally to IEEE1149.1 The chip of specification can be with JTAG interface compatibilities, because the chip for meeting this specification all contains boundary scan cell BSC。

In summary to the discussion of jtag interface performance, it is known that it has good superiority, the application is drawn using 20 pins The jtag interface of pin, to realize the functions such as boundary scan, hardware testing and programming.Its specific wiring is as shown in Figure 6.

3.3 memory circuitry.

3.3.1FLASH interface circuit.

In the system application, because aggregation node will store and handle substantial amounts of data, and program is complicated, in order to just In the storage of data and program, the system builds the Flash storages system of 32 from the flash storage chip of two panels 16 System.Therefore its memory capacity is 2*16Mb.On processor electricity or reset after since Flash obtain instruction and perform, in order to It is easy to the configuration of system, the application realizes that flash storage is configured on Bank0 or Bank1 by wire jumper JF, will LPC2214 CS0 or CS1 is connected to SST39VF1601 CE# ends.

A piece of Flash 16 bit data bus【DQ15---DQ0】With LPC2214 low 16 bit data bus【D0—D15】 It is connected.Another Flash 16 bit data bus【DQ15---DQ0】With LPC2214 high 16 bit data bus【D16—D31】 It is connected.SST39VF1601 OE# terminates LPC2214 OE ends；WE# terminates LPC2214 WE ends;Address bus【A19—A0】 With LPC2214 address bus【A2—A21】It is connected.Its circuit connection is as shown in Figure 7.

3.3.2SRAM interface circuit.

Memory is the important component of computer, and its effect is the part for storage program and data, memory Species it is a lot, the application selects ISSIS61LV25616AL, ISSIS61LV25616AL to be a kind of static random access memory Part, because it has storage speed fast, the advantage such as capacity is big, in embedded systems through frequently with this device. ISSIS61LV25616AL uses CMOS technology and is fabricated by, and combines the application thought of modern chips, therefore its performance Reliably, it is low in energy consumption using CMOS technology, by the control to its pin, when chip without using when, can allow at the chip In the state of low-power consumption, the resource and energy of whole circuit board have so been saved.

The application constitutes the storage system of 32 using two panels ISSIS61LV25616AL, by JR wire jumpers realize with Bank0 or Bank1 configuration, ISSIS61LV25616AL and LPC2214 connection are as shown in Figure 8.

3.4 communication interface.

3.4.1 ethernet interface circuit.

Aggregation node plays a part of gateway function in the entire system, and wireless sensor network node uses nothing Line communicates, because with the increase of transmission range, its signal transmitted can increasingly come weak, must in order to ensure the quality of signal Other transmission means must be converted into, ethernet communication is reliable and stable, is not limited by transmission range, therefore the convergence of the system 10M/100M Ethernet interfaces built in node, it is farther that the data of such sensor node will be transmitted, so as to realize long-range Monitoring and control.Because RTL8019 there are BROM interfaces, with memory, interior data, ten can be read upon system reset Divide convenient.And PacketPage structures are used unlike CS8900A, therefore Ethernet driving is write and is more prone to, therefore The application is used as Ethernet chip using RTL8019.

LPC2214 realizes the access to RTL8019AS dual port RAMs by 16 DMA modes, and wiring is simple, control Flexibly.RTL8019AS chip resets are controlled using P0.25 in addition, because LPC2214 I/O voltages are 3.3V, and RTL8019AS I/O voltages are 5V, in order to realize the matching of voltage, the resistance in 470 Europe of being connected in its connection.

20F001N is RJ45 interface connectors (band network transformer/wave filter), the connector meet IEEES02.3 and IEEE902.3ab standards, because it has the function of isolation, therefore being capable of preferably suppression electromagnetic interference.Pass through 20F001N systems It can just be articulated on Ethernet, its specific wiring diagram is as shown in Figure 9.

3.4.2 serial port circuit.

Serial line interface almost has in all microcontrollers, and recommend usually using Electronic Industries Association (EIA) Rs-232 standard interface, this sata standard interface is the data transmission bus being in daily use.Early stage mainly be used in computer and Terminal carries out remote data transfer, development and microcontroller skill along with microcomputer by telephone wire and MODEM The continuous improvement of art, rs-232 standard interface, which is not only, to be applied remote, and many closely also begins to use this communication party Formula.So, near field communication system, telephone wire and MODEM are not being used, and are directly connected end to end, so It greatly reducing the cost of circuit.

A most basic Serial Communication Function is completed, only needs to connect three leads in circuit application： RXD, TXD and GND.But due to the LVTTL of high and low level signal and LPC2214 UART interface defined in rs-232 standard High and low level signal is entirely different defined in interface circuit, needs to carry out electricity when connecting between Transistor-Transistor Logic level and RS-232 level Flat turn is changed, and conventional UART interface chip is the series interfaces chip that MAXIM companies produce, and the application uses MAX3232 conducts Electrical level transferring chip.Its specific wiring is as shown in Figure 10.

LPC2214 processors include 2 UART.One UART provides a complete modem and controls to shake hands to connect Mouthful, another UART is to send and receive data wire.LPC2214 UART has following features：16 bytes receive and sent FIFO；Register position follows 550 industrial standards；Receiver FIFO starting points are 1,4,8 and 14 bytes；Built-in baud rate hair Raw device；UART1 includes standard modem interface signal.

3.4.3 radio receiving transmitting module.

Because wireless sensor node uses CC2530, in order to realize the matching of communication and ensure the stabilization of communication Property, the wireless transmit/receive units of aggregation node also must be used as the chip being wirelessly transferred using CC2530.Pushed away by Chipcon companies The CC2530 gone out can be used for realizing the on-chip system of embedded ZigBee applications.It supports 2.4GHz IEEE 802.15.4/ZigBee agreement.It has the advantages that a lot.Material cost is very low, thus can set up strong with cheap cost Big network node；Leading RF transceiver performances are melted into wherein by CC2530, the enhanced 8051CUP of industrywide standard, exploitation Simply, system integration 8KB RAM, with miscellaneous editions, can adapt to different occasions；With plurality of operating modes, Neng Gouman The demand of sufficient super low-power consumption, extends the service life of node.

LPC2214 includes 2 SPI interfaces.SPI is the serial line interface of a full duplex, and it, which is applied into, can be handled one The main frame and slave of multiple interconnections in individual given bus.4 are only needed to when transmitting data due to spi bus with line, wiring is simple, because Carried out data transmission between this LPC2214 and CC2530 using spi bus, LPC2214 is configured to main frame, CC2530 is configured to Slave, is carried out data transmission using master-slave mode between them.

4th, hardware circuit test and system integrated testability.

4th, 1 hardware circuit is tested.

After system electrification, board power indicator lamp is normal.1.8V and 3.3V power supply indicators are simultaneously shinny, press reset After key, homing light is bright, and reset is working properly, and circuit board is connected by JTAG emulators with circuit, can read CPU classes Type.

After serial ports program is downloaded to Target Board by jtag interface, Target Board is connected with computer by Serial Port Line, By COM Debug Assistant, the transmitting-receiving of serial data can be normally realized.

4.2 system integrated testabilities.

The software of whole system mainly includes：Operating system μ C/OS-II transplanting, LPC2214 starts the composition of code, The realization of Ethernet based on TCP/IP, and the realization that LPC221 communicates with CC2530.μ C/OS-II operations are analysed in depth The advantage of system, the state of task, the scheduling of task, and μ C/OS-II operating mechanisms, transplanting condition and the reality specifically transplanted It is existing.From TCP/IP structural analysis and principle analysis, the communication of Ethernet is realized.From zigbee agreement, the knot of CC2530 kernels The hardware configuration of structure and LPC2214, implements SPI communication.System integrated testability has reached the requirement of application.

The application is after the analysis at present certain situation of large-scale type aircraft carrier deck system for detecting temperature, it is proposed that based on Zigbee Wireless sensor network optical detection system, and based on c8051, relay switch control.Apply using LPC2214 as kernel Wireless sensor network sink node, to realize that Ethernet carries out long-range real-time monitoring.

Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model Person of ordinary skill in the field can make various modifications or supplement to described specific embodiment or use class As mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.

Claims (9)

1. a kind of wisdom classroom electric appliance on-off control system based on arm processor, it is characterised in that including：

Some sensor nodes：The sensor being connected including 8051 series monolithics and with 8051 series monolithics, is arranged on Monitored area, it may be difficult to which the physical quantity of perception changes into electricity, and electric quantity signal is spread out of；

Aggregation node：With all sensor node wireless connections, for the conversion of communication, the electricity of this radio communication is believed Number wire signal is changed into, while being stored and being handled to data；

Remote server：It is connected with aggregation node, for monitoring the physical quantity of wireless senser transmission, while according to network and being The order of the requirement issue monitoring of system, makes sensor node according to the real-time gathered data of requirement of user, management node will also It is responsible for substantial amounts of data storing work, sets up database, substantial amounts of data are managed, facilitates later access and check and correction.

2. a kind of wisdom classroom electric appliance on-off control system based on arm processor according to claim 1, its feature exists In the sensor includes infrared sensor or laser sensor.

3. a kind of wisdom classroom electric appliance on-off control system based on arm processor according to claim 1, its feature exists Include processor in, aggregation node, and be connected with processor Ethernet transmission unit, memory cell, wireless transmission unit, And the power supply for aggregation node and the peripheral circuit of data transfer.

4. a kind of wisdom classroom electric appliance on-off control system based on arm processor according to claim 3, its feature exists In the processor model is LPC2214；Ethernet transmission unit model RTL8019；Wireless transmission unit model CC2530；Memory cell includes SDRAM and FLASH；Processor is connected by serial ports and jtag port with server.

5. a kind of wisdom classroom electric appliance on-off control system based on arm processor according to claim 4, its feature exists In the server includes service computer and some clients being connected with service computer.

6. a kind of wisdom classroom electric appliance on-off control system based on arm processor according to claim 3, its feature exists In power circuit, hardware reset circuit, jtag interface circuit, memory circuitry and the communication that peripheral circuit includes power supply connect Mouth circuit.

7. a kind of wisdom classroom electric appliance on-off control system based on arm processor according to claim 6, its feature exists In the power circuit includes managing chip one, managing chip two and JP1 power interfaces, the pin 1 of the JP1 power interfaces It is grounded and is connected with the pin ADJ of managing chip one, pin 2 is connected with the pin IN of managing chip one, the pin 1 and pin 2 of JP1 power interfaces Between be parallel with electric capacity CT1 and electric capacity CT2, resistance R1 jumps to the pin 1 of JP1 power interfaces after being connected with light emitting diode DS1 Between pin 2；Output, the pin 1 and managing chip one of JP1 power interfaces are used as after pin TAB and pin the OUT docking of managing chip one Pin OUT between be parallel with electric capacity CT3, resistance R2 jumped to after being connected with light emitting diode DS2 JP1 power interfaces pin 1 and Between the pin OUT of managing chip one；The pin IN of managing chip two is connected with the pin IN of managing chip one；The pin of managing chip two As output after TAB and pin OUT docking, the pin ADJ ground connection of managing chip two, the pin ADJ and managing chip two of managing chip two Pin OUT between be parallel with electric capacity CT4, resistance R3 jumped to after being connected with light emitting diode DS3 managing chip two pin ADJ and Between the pin OUT of managing chip two；The model LM1084 of managing chip one, the model LM1117 of managing chip two.

8. a kind of wisdom classroom electric appliance on-off control system based on arm processor according to claim 6, its feature exists In hardware reset circuit includes reset chip one, reset chip two and reset key RST, the wherein model of reset chip one S708S, the model 74AC125D of reset chip two；Pin after the wherein reset key RST docking of pin 1,2 simultaneously with reset chip one 3rd, 4 connection, reset key RST pin 3,4 is connected with the pin 1 of reset chip one simultaneously after docking；The pin 7 of reset chip one is with resetting The pin 4 of chip two is connected；The pin 2,5,9,12,7 of reset chip two is grounded；The pin Y1 of reset chip two connects the resistance being sequentially connected in series R4 and light emitting diode DS4；The pin Y2 of reset chip two meets the resistance R5 being sequentially connected in series；The pin Y3 of reset chip two connects to go here and there successively The resistance R5 of connection；The pin 1 and pin 10 of reset chip one are docked.

9. a kind of wisdom classroom electric appliance on-off control system based on arm processor according to claim 6, its feature exists In communication interface circuit includes ethernet interface circuit and serial port circuit；Serial port circuit includes serial port module, model MAX3232CSE, the pin 15 of serial port module is grounded, and pin 6 connects and is grounded after electric capacity C4, and pin 12 meets the light emitting diode DS6 being sequentially connected in series With resistance R9, pin 11 meets the light emitting diode DS5 and resistance R8 being sequentially connected in series；Pin 3 is connected by electric capacity C1 with pin 1, and pin 4 passes through Electric capacity C2 is connected with pin 5；Pin 2 and it is connected by electric capacity C3 with pin 16；Pin 13 and pin 14 connect serial interface.