CN101329574A - Single-phase control node apparatus of wireless sensor network - Google Patents
Single-phase control node apparatus of wireless sensor network Download PDFInfo
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- CN101329574A CN101329574A CNA200810022892XA CN200810022892A CN101329574A CN 101329574 A CN101329574 A CN 101329574A CN A200810022892X A CNA200810022892X A CN A200810022892XA CN 200810022892 A CN200810022892 A CN 200810022892A CN 101329574 A CN101329574 A CN 101329574A
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Abstract
The invention provides a single-phase control node device of a wireless sensor network which relates to the technical field of the wireless sensor network of various applications such as livestock facility cultivation and environmental monitoring for plant facility cultivation, etc. The device consists of a data communication part and an executive equipment driving part, wherein, a storage unit and a wireless transceiver, etc. in the data communication part are respectively connected with a processor unit; a silicon-controlled triggering unit and an executive equipment state output unit in the executive equipment driving part are respectively connected with the silicon-controlled control unit and connected with the processor unit of the data communication part respectively by corresponding interfaces thereof; the wireless transceiver unit of the device sends a base station control command sent by the sensor network to the processor unit for processing and controls the turn on or off of the executive equipment by the silicon-controlled control unit; the processor unit acquires the state information of the executive equipment by a state output unit of the executive equipment and carries out processing at the base station by a router of the sensor network through the wireless transceiver unit.
Description
Technical field
The present invention is applicable to the wireless sensor network technology field of monitoring such as temperature, humidity, intensity of illumination and all kinds of gases in the similar systems such as livestock and poultry facility cultivation surroundings monitoring, the environmental monitoring of plant facility cultivation, storage environmental monitoring, human settlement's monitoring, relates in particular to a kind of single-phase control node apparatus of wireless sensor network.
Background technology
Can be widely used in occasions such as livestock and poultry facility cultivation environment, plant facility cultivation environment, storage environment, human settlement as a kind of wireless sensor network of self-organization intelligent sensing of dynamic-configuration monitors enforcement such as its temperature, humidity, intensity of illumination and all kinds of gases and has extremely wide application prospect.Wireless sensor network comprises a large amount of sensor nodes and at least one communication base station, when it is applied to field such as above-mentioned environmental monitoring, and can be immediately, monitoring of environmental data exactly.But monitor environmental index such as temperature, humidity, illumination and all kinds of gases when sensor node when being higher or lower than needed threshold value, need to control automatically the start and stop of actuating equipments such as cascade, fan, bulb, to reach the regulating action to environmental index, this is the higher requirement that wireless sensor network system is proposed.Some wireless sensor networks are used for the research project of environment measuring both at home and abroad, Intel laboratory and the Atlantic institute as department of computer science of University of California Berkeley have developed jointly a project of utilizing radio sensing network monitoring island ecologic environment that is called " in-situ ", and have carried out the research to petrel habitat ecologic environment at Da Yadao (Great DuckIsland); Also have Florence, Italy university to propose the environmental monitoring platform that a kind of wireless sensor network is applied to extensive area in 2007, and practical application is on the comprehensive production project of agricultural product, but do not see that all environment regulating and controlling link is wherein arranged.How to reach and to monitor that to control again be the problem that wireless sensor network technology must will be faced in many application of practical project.In a complete wireless sensor network supervisory system, sensor node obtains environmental information and carries out simple data processing, carry out wireless data communications between node, form exchange data information with multi-hop, information is passed to communication base station, the information that communication base station can be collected sensor node is handled effectively, simultaneously by the single-phase control node apparatus sending controling instruction of sensor network wireless data communications to this patent design realization, the Control Node device promptly can be controlled the switch start and stop of actuating equipment according to the steering order that send the base station, and can send the actuating equipment status information to communication base station by sensor network.Single-phase control node apparatus should have actuating equipment control ability safely and effectively, stable communication capacity and lasting ability to work, the adaptive faculty that should have the reliability of actuating equipment control, information processing and wireless transmission and real-time, self-organizing network, rationality of structure or the like.And single-phase control node apparatus need cost of investment is low, cost performance is high, real-time good, operation and maintenance is convenient.Be starting point to address the above problem just, systematically study and designed a kind of single-phase control node apparatus of wireless sensor network.In present domestic and international association area research report and retrieval, do not see or similar design identical with this patent.
Summary of the invention
Technical matters:
The purpose of this invention is to provide a kind of single-phase control node apparatus of wireless sensor network that can effectively use in many occasions such as livestock and poultry facility cultivation surroundings monitoring, the environmental monitoring of plant facility cultivation, storage environmental monitoring, human settlement's monitoring, with the problem of communicating by letter between effective solution wireless sensor network system and the actuating equipment, control aspect, and require that its cost of investment is low, cost performance is high, real-time is good, safe and reliable, operation and maintenance convenient.
Technical scheme:
A kind of single-phase control node apparatus of wireless sensor network that is applied to many occasions such as livestock and poultry facility cultivation surroundings monitoring, the environmental monitoring of plant facility cultivation, storage environmental monitoring, human settlement's monitoring, it comprises actuating equipment driver part and data communication parts.The controllable silicon trigger element interface 7* of actuating equipment driver part links to each other with the connectivity port J7 of data communication parts, and the actuating equipment state output unit interface 8* of actuating equipment driver part links to each other with the connectivity port J8 of data communication parts.
Described data communication parts comprise processor unit 1, identify label unit 2, memory cell 3, wireless transmit/receive units 4, power supply unit 5.Wireless transmit/receive units 4 connects processor unit 1, is used for time of reception synchronizing signal and base stations control instruction (starting or stoping instruction), and sends the actuating equipment status signal to the base station; Processor unit 1 is used for judging and the level value handling the packet that receives and obtain connectivity port J8 is kept at the packet that will send, the time synchronized counter if time synchronizing signal is then reset, if steering order is then exported high or low level (starting or stoping instruction) to connectivity port J7, send by the Route Selection path cycle as status signal with the level value of the connectivity port J8 that obtains; Identify label unit 2 connects processor unit 1, is used to equipment that only identifier is provided; Memory cell 3 connects processor unit 1, as replenishing of non-volatile program under the not enough situation of processor unit 1 internal storage space and data storage; Power supply unit 5 provides operating voltage for whole data communication parts.
Described actuating equipment driver part comprises SCR control unit 6, controllable silicon trigger element 7, actuating equipment state output unit 8, power supply unit 9.Controllable silicon trigger element 7 connects SCR control unit 6, is used for high or low level conducting or blocking-up SCR control unit 6 by controllable silicon trigger element interface 7* input; Thereby SCR control unit 6 is used to control the break-make control actuating equipment start and stop that exchange main circuit; Actuating equipment state output unit 8 connects SCR control unit 6, thereby the break-make that is used to detect SCR control unit 6 obtains the duty of actuating equipment, and in the mode of high-low level to actuating equipment state output unit interface 8* output, high or low level is represented the state of starting or stoping respectively; Power supply unit 9 provides operating voltage for the entire equipment driver part.
The present invention can also further adopt following technical measures:
1, in the data communication parts, processor unit 1 mainly is made up of microprocessor chip " U1 "; Identify label unit 2 mainly produces chip " U2 " by random number to be formed, and it links to each other with the general purpose I/O interface of microprocessor chip " U1 "; Memory cell 3 mainly is made up of serial flash memory dies " U3 ", and it links to each other with Asynchronous Serial Interface with the universal synchronous of microprocessor chip " U1 "; Radio receiving transmitting module 4# and radio receiving transmitting module interface 4* that wireless transmit/receive units 4 is made up of radio transmitting and receiving chip " U4 " and peripheral circuit thereof form, and wherein radio receiving transmitting module interface 4* links to each other with the Serial Peripheral Interface (SPI) of microprocessor chip " U1 " by connectivity port J1; The data line of communication debugging interface J6 links to each other with the JATG interface of microprocessor chip " U1 " through drawing the back on the resistance; Connectivity port J7 links to each other with the general purpose I/O interface of microprocessor chip " U1 " respectively with connectivity port J8.
2, in the data communication parts, the microprocessor chip in the processor unit 1 " U1 " can be divided into according to the function at this device:
1) Serial Peripheral Interface (SPI) module is used for packet that buffer memory receives by wireless transmit/receive units 4 and the packet that will send.
2) processor cores module is used to judge and handle the packet that receives, and the time synchronized counter if time synchronizing signal is then reset if steering order is then judged enabled instruction or halt instruction, and is provided with the value of control port module register; And the value of reading control mouth module register is kept in the packet it as status signal, sends by the Route Selection path cycle.
3) control port module is used for exporting high or low level according to the setting of processor cores module to this module register to connectivity port J7, and the level value of connectivity port J8 is kept in this module register.
4) timer module is as the timer of cycle transmit status signal and the time synchronized counter that keeps the whole sensor Network Synchronization.
3, in the actuating equipment driver part, adopt controllable silicon " Q2 " control to exchange the break-make of main circuit in the SCR control unit 6; Triode in the controllable silicon trigger element 7 " Q1 " connects controllable silicon " Q2 ", by control triode " Q1 " thus conducting or place the controllable silicon " Q2 " that exchanges main circuit by conducting or blocking-up; Controllable silicon trigger element interface 7* adopts photoelectrical coupler " U2 " to be connected with triode " Q1 ", with actuating equipment driver part and the light-coupled isolation of data communication parts; In actuating equipment state output unit 8, place the current transformer MUTUAL that exchanges main circuit to connect follow-up diode and electric capacity, load on the input end of the photoelectrical coupler " U3 " of actuating equipment state output unit interface 8*; Actuating equipment state output unit interface 8* also changes the output level dress into meet the TTL standard high-low level except that with actuating equipment driver part and the light-coupled isolation of data communication parts.
Beneficial effect:
1) the present invention is on the basis of systematically having studied and designed wireless sensor network system, design has also been developed a kind of single-phase control node apparatus of wireless sensor network, with communicating by letter and the problem of control aspect between effective solution wireless sensor network system and the actuating equipment, and its cost of investment is low, cost performance is high, real-time is good, safe and reliable, operation and maintenance convenient.
2) the present invention collects the data communication parts and the actuating equipment driver part is as a whole, and the data communication parts receive steering order, the work of control actuating equipment driver part, and read the actuating equipment status signal from the actuating equipment driver part.This single-phase control node apparatus of wireless sensor network adopts wireless mode to receive and dispatch steering order and actuating equipment is carried out switch start and stop control, can also detect the concurrent signal that does well of running status of actuating equipment, so both greatly improve the practicality of whole wireless sensor network, also made things convenient for maintenance.
3) in the actuating equipment driver part of the present invention, adopt the control of controllable silicon application scheme to exchange the break-make of main circuit, thereby avoided traditional employing relay control to exchange the problem that main circuit is easy to generate electric spark; Not only actuating equipment can be controlled, the switch start and stop status signal of actuating equipment can also be detected and export.
4) the present invention adopts single-phase alternating current to change the direct current regulation circuit scheme in the power supply unit of data communication parts, uses a plurality of voltage stabilizers to be converted to multistage direct supply voltage according to the needs of using.Provide multiple direct supply voltage with a power supply unit, to satisfy application requirements.
5) the present invention owing to adopted the practicality design, fully taking into account when it installs in actual applications applicability, reduces its cost as far as possible in design.Separate the light-coupled isolation interface coupling part of interface coupling part, data communication parts and the actuating equipment driver part of radio receiving transmitting module in the data communication parts of making owing to factors such as considering anti-interference and cost, the connecting portion of each several part power supply interface grades, also notice its fastness, weld before the deployment, and the sealing of attention pad, make that its device can both operate as normal in environment such as humidity, dust, and phenomenons such as burn into line short or leak current fault can not take place.
6) the present invention is because the operating temperature range of each components and parts that adopts is big, make that its device can (the extreme lowest temperature in Harbin be-30.5C ° at-40C ° to+85C °, the extreme highest temperature in Chongqing is+44C °) and operate as normal, can make the present invention be suitable for the overwhelming majority of countries and the area in the world like this.
7) the present invention is owing to have top 5), 6) described in characteristics, can resist the high humidity of common intensity, high low temperature, dust storm, bump and corrosion etc., greatly strengthened the adaptive faculty of its device under rugged surroundings.
8) the present invention separates its device and AC-DC conversion power supply plate on designing and producing, and guarantee enough physical distances, and the radio transmitting and receiving chip on the radio receiving transmitting module is adopted the betal can encapsulation, the D.C. regulated power supply of AC-DC conversion also adopts the betal can encapsulation, so both reduced the interference of power panel to radio receiving transmitting module, also strengthen the antijamming capability of radio receiving transmitting module, thereby improved the performance of wireless receiving and dispatching.
9) the present invention adopts jtag interface that terminal is debugged its device and programming and programming program; Not only can control actuating equipment, can also detect the state of actuating equipment and give notice, its function effectively and reliable.
Description of drawings
Fig. 1 is a single-phase control node apparatus of wireless sensor network The general frame of the present invention.
Fig. 2 is the structured flowchart of microprocessor chip U1 in the single-phase control node apparatus of wireless sensor network data communication parts processor unit 1 of the present invention.
Fig. 3 is a single-phase control node apparatus of wireless sensor network data communication parts schematic diagram of the present invention (schematic diagram of power supply unit 5 and radio receiving transmitting module 4# provides separately).
Fig. 4 is a single-phase control node apparatus of wireless sensor network radio receiving transmitting module 4# schematic diagram of the present invention.
Fig. 5 is single-phase control node apparatus of wireless sensor network power supply unit 5 schematic diagrams of the present invention.
Fig. 6 is the workflow diagram of microprocessor chip U1 in the single-phase control node apparatus of wireless sensor network data communication parts processor unit 1 of the present invention.
Fig. 7 is a single-phase control node apparatus of wireless sensor network actuating equipment driver part schematic diagram of the present invention.
Embodiment
A kind of single-phase control node apparatus of wireless sensor network that is applied to many occasions such as livestock and poultry facility cultivation surroundings monitoring, the environmental monitoring of plant facility cultivation, storage environmental monitoring, human settlement's monitoring comprises actuating equipment driver part and data communication parts.The controllable silicon trigger element interface 7* of actuating equipment driver part links to each other with the connectivity port J7 of data communication parts; The actuating equipment state output unit interface 8* of actuating equipment driver part links to each other with the connectivity port J8 of data communication parts.
In the data communication parts, processor unit 1 is made up of microprocessor chip U1 and peripheral circuit thereof, and U1 is ATmegal128, ATmegal128L or MSP430.It mainly finishes signal controlling, data-switching, data operation, protocol communication and algorithm process, on the software of realizing, consider with the whole sensor network system collaborative, adopt the micro embedded real time operating system of TinyOS that adopts in the sensor network system, and on this platform, adopt the nesC language.
Function according to realizing at this device can be divided into the microprocessor chip U1 of processor unit 1:
1) Serial Peripheral Interface (SPI) module, its external interface link to each other with wireless transmit/receive units 4 by connectivity port J1, are used for packet that buffer memory receives by wireless transmit/receive units 4 and the packet that will send.
2) processor cores module, it can reference-to storage, carries out computing, control peripheral hardware and handling interrupt.Function in this realization comprises:
1. be used to judge and handle the packet that receives, judge it is time synchronizing signal or steering order according to the data packet head address that receives: time synchronized counter if time synchronizing signal is then reset; If steering order then judges it is enabled instruction or halt instruction according to the numerical value of packet load, and according to the value of judging relative set control port module register.
2. the analog value that is used for reading control mouth module register is kept at the packet load as status signal with it, selects the path according to the LEPS algorithm, and starts a new timer cycle transmission.
3) control port module, its external interface links to each other with the actuating equipment driver part with connectivity port J8 by connectivity port J7, be used for according to of the setting of processor cores module this module register, export high or low level to connectivity port J7, and the level value of connectivity port J8 is kept in this module register.
4) timer module is as the timer of cycle transmit status signal and the time synchronized counter that keeps the whole sensor Network Synchronization.
Identify label unit 2 mainly produces chip U2 by random number to be formed, and its " DQ " (data port) pin links to each other with the universaling I/O port pin of microprocessor chip U1.It has the only random code in the whole world, as this equipment only identifier in sensor network, also is the mac-layer address of its radio communication.
The radio receiving transmitting module that wireless transmit/receive units 4 is made up of radio transmitting and receiving chip U4 and peripheral circuit thereof (comprising the wireless receiving and dispatching antenna) 4# and radio receiving transmitting module interface 4* form.Radio transmitting and receiving chip U4 is CC1000, the CC1020 that is operated in the 300-1000MHz ISM/SRD bandwidth range, or is operated in the similar products such as CC2420 of 2.4GHz frequency range.Radio receiving transmitting module interface 4* links to each other with the Serial Peripheral Interface (SPI) of microprocessor chip U1 by connectivity port J1, and " SI, SO, SCLK " pin of radio transmitting and receiving chip U4 is linked to each other with " SPI_MOSI, SPI_MISO, SPI_SCLK " pin of microprocessor chip U1 respectively.Antenna adopts the spiral or straight-bar type of rubber encapsulation, and adopts SMA interface or TNC interface between the radio receiving transmitting module 4# main body.It is mainly used in time of reception synchronizing signal and base stations control instruction (starting or stoping instruction), and sends the actuating equipment status signal to the base station.
The data line of communication debugging interface J6 links to each other with the jtag interface of microprocessor chip U1 through drawing the back on the resistance, " TCK, TMS, TDO, TDI " pin interconnection between them.It is as the interface that the inner FLASH of microprocessor chip U1 is programmed, and the debugging interface of controlling the U1 operational scheme from hardware.
Also comprise the connectivity port (J7), connectivity port (J8) that link to each other with the actuating equipment driver part in the data communication parts, they link to each other with the universaling I/O port pin of microprocessor chip respectively.
Power supply unit 5 changes direct current regulation circuit for single-phase alternating current, according to two kinds of different direct supply level of needs output of using.After AC power process transformer and the rectifier bridge step-down full-bridge rectification, be converted to first kind of direct supply VCC2, be converted to second kind of direct supply VCC after the processing through conversion of U2 chip and the follow-up components and parts such as power supply that open the light again through the U1 chip.It is responsible for whole data communication parts power supply.
In the actuating equipment driver part, SCR control unit 6 is mainly by placing the controllable silicon Q2 and the holding circuit thereof that exchange main circuit to form, the conducting of controllable silicon Q2 and exchange the break-make of main circuit by control, thus control the start and stop of actuating equipment.
Controllable silicon trigger element 7 mainly is made up of triode Q1 on-off circuit, and triode Q1 links to each other with controllable silicon Q2.It is used for placing controllable silicon Q2 conducting or the blocking-up that exchanges main circuit by controlling the conducting of triode Q1 by the high or low level of controllable silicon trigger element interface 7* input or ending thereby control.
Actuating equipment state output unit 8 mainly detects the main circuit current state by the current transformer MUTUAL that places the interchange main circuit, thereby obtains the on off operating mode of controllable silicon Q2, and is converted into voltage output, and realizes through the subsequent conditioning circuit processing.
Controllable silicon trigger element interface 7* adopts photoelectrical coupler U2, U3 to link to each other with triode Q1, current transformer MUTUAL respectively with executive circuit state output unit interface 8*.Be mainly used in the level signal input and output that guarantee actuating equipment driver part and data communication parts and meet the TTL standard, and guarantee the light-coupled isolation between actuating equipment driver part and the data communication parts, make and the different electrical power isolation partly of single-phase control node apparatus of wireless sensor network improve its anti-interference and reliability.
Power supply unit 9 adopts single-phase alternating current to change the scheme of direct current regulation circuit, and single-phase alternating current is converted into the VCC1 direct supply by the U1 chip after the step-down full-bridge rectification, is the power supply of actuating equipment parts.
Embodiment one:
Visible Fig. 3 of case study on implementation of above-mentioned data communication parts (not comprising power supply unit 5 and wireless transmit/receive units 4).It mainly is made up of processor unit 1, identify label unit 2, memory cell 3, the connectivity port J1, the J2 that link to each other with radio receiving transmitting module interface 3*, J3, power supply unit interface J4, communication debugging interface J6, connectivity port J7, connectivity port J8.
Microprocessor chip U1 in the processor unit 1 selects 8 high-grade microprocessor ATmegal28L of high-performance, low-power consumption AVR of AT company for use.It has advanced risc architecture, the highest 8MHz frequency of operation, and the arithmetic speed height is finished in the great majority instruction in one-period; 128kFlash, 4kSRAM and 4kEEPROM in the sheet; Support 6 kinds of sleep patterns such as battery saving mode, power-down mode; Have multiple bus and sufficient IO interface; Has A/D, D/A interface; Wide operating voltage range with 2.7V-5.5V; Has jtag interface with IEEE 1149.1 operating suchs.
Random number in the identify label unit 2 produces the DS2401 that chip U2 selects DALLAS company for use, and its " 2 " (DQ) pin link to each other with " 47 " pin of microprocessor chip U1.
Serial flash memory dies U3 in the memory cell 3 selects the 4M flashAT45DB041B of AT company for use, and its " 8,1,2 " pin links to each other with " 27,28,30 " pin of microprocessor chip U1 respectively.
The data line of communication debugging interface J6 links to each other with the jtag interface of microprocessor chip U1 through drawing the back on the resistance " R6～R9 ", and its " 1,3,5,9 " pin is connected with " 57,56,55,54 " pin of microprocessor chip U1 respectively.
" 1 " pin of connectivity port J7 is connected with " 33 " pin of microprocessor chip U1; " 1 " pin of connectivity port J8 is connected with " 34 " pin of microprocessor unit U1.
Visible Fig. 4 of case study on implementation of wireless transmit/receive units 4.Radio transmitting and receiving chip U4 in the wireless transmit/receive units 4 selects for use Chipcon company to produce CC1000.It has high sensitivity (generally-109dbm); Low suppling voltage (2.3V～3.6V); Extremely low power dissipation; Be operated in the 433MHz frequency range in this example.It links to each other U4 " 23 ", " 24 " pin respectively by connectivity port J1 with " 12 and 13 ", " 11 " pin of U1.Antenna adopts rubber encapsulation spiral external, and adopts the SMA interface between the radio receiving transmitting module main body.
Visible Fig. 5 of case study on implementation of the power supply unit 5 of data communication parts, adopt single-phase alternating current to change the direct current regulation circuit scheme, after process transformer step-down of single-phase AC voltage and the rectifier bridge full-bridge rectification, be converted into+the 5.0V direct supply through 3 inputs of U1 chip L78L05AB pin and pin 1 output, be converted into+the 3V direct supply through 3 inputs of U2 chip LP2950C-3.0 pin and pin 1 output again, through power switch S1 output VCC direct supply.Power supply unit 5 is powered to each unit of data communication parts respectively by connectivity port J2, J4, J6.
After this device debugging success, the connection spot welding between each unit interface is dead.
The temperature range of selected chip is as follows on the data communication parts: and chip microprocessor chip U1 is-and 55C ° is to+125C °; Random number produces chip U2 and be-and 40C ° arrives+85C °; Serial flash memory dies U3 is-40C ° is to+85C °; Radio transmitting and receiving chip U4 among the radio receiving transmitting module 4# is-40C ° is to+85C °; In the power supply unit 5 three terminal regulator U1 chip L78L05AB be-40C ° is to+125C °; Three terminal regulator U2 chip LP2950C-3.0 is-40C ° is to+125C °.This make the data communication parts can be operated in-40C ° is in+85C ° environment.
Embodiment two:
Chip and the connected mode selected, the flow process of the microprocessor chip function that U1 realizes in the processor unit 1 of above-mentioned data communication parts according to embodiment one as shown in Figure 6, it comprises:
The packet that step 2 processor cores resume module is received by the serial device interfaces module.
1) if receiving the address of packet is that ID number of this node apparatus, length are that CONTROL_SIZE (2) and particular data bit value are 1, then be the base stations control instruction, in this enabled instruction as actuating equipment.Be provided with G port data register zero-bit this moment is 1, to PG0 output TTL high level, changes step 3 over to.
2) if receiving the address of packet is that TOS_BCAST_ADDR (0xFFFF), length are that MSG_LEN (29) and data bit numerical value conform to, then be the base station time synchronizing signal.This moment, the time synchronized timer of resetting restarted timing, returned step 2.
3) if the packet of receiving does not meet above-mentioned two kinds of situations, then these data are invalid, return step 2.
1) after the processor cores module is received the enabled instruction executable operations that is transmitted by the serial device interfaces module, starts a new timer and begin periodically transmit status signal.The processor cores module is by reading the primary currency of G port data register, obtain the PG1 level value and this numerical value is kept in the particular data position of packet as status signal, status signal is periodically sent by the serial device interfaces module in the mode of multi-hop by Route Selection (the LEPS routing algorithm is selected the path), return step 3.
2) the processor cores resume module is by the packet of serial device interfaces module reception.
If 1. receive the base station steering order, then according to the numerical value judgment processing of packet particular data position.If numerical value is 1, then be enabled instruction, it is 1 that G port data register zero-bit is set, to PG0 output TTL high level; If numerical value is 0, then be halt instruction, removing G port data register zero-bit is 0, to PG0 output TTL low level.Return step 3.
If 2. receive the base station time synchronizing signal, the time synchronized of then resetting timer restarts timing, returns step 3.
If the packet of 3. receiving does not meet above-mentioned two kinds of situations, then these data are invalid, return step 3.
Embodiment three:
Visible Fig. 7 of case study on implementation of actuating equipment driver part, it mainly is made up of SCR control unit 6, controllable silicon trigger element 7, controllable silicon trigger element interface 7*, actuating equipment state output unit 8, actuating equipment state output unit interface 8*, power supply unit 9." PIN33 " pin of controllable silicon trigger element interface 7* links to each other with " 33 " pin of microprocessor chip U1 by connectivity port J7; " PIN34 " pin of actuating equipment output unit interface 8* links to each other with " 34 " pin of microprocessor chip U1 by connectivity port J8.
In SCR control unit 6, place the controllable silicon Q2 that exchanges main circuit to select BTA26BW for use, the maximum permission by electric current is 26A, can satisfy the demand of most application scenarios.
In controllable silicon trigger element 7, triode Q1 selects general semiconductor device 8050 for use, and the emitter of Q1 links to each other with the gate pole of controllable silicon Q2, the conducting by control Q1 or end to come conducting or blocking-up places the controllable silicon Q2 that exchanges main circuit.
In controllable silicon trigger element interface 7*, photoelectrical coupler U2 selects TLP521 for use, and the output terminal of U2 links to each other with the base stage of triode Q1 by after resistance R 3 current limlitings.It is mainly used in actuating equipment driver part and the light-coupled isolation of data communication parts.
The current transformer MUTUAL of actuating equipment output unit 8 places on the interchange main circuit that the controllable silicon Q2 of SCR control unit 6 controlled, during the main circuit conducting, current transformer MUTUAL is the voltage of an effective value about 1.5～3V with the current conversion of passing through on the main circuit, directed voltage stabilizing through follow-up diode and electric capacity, finally be output as a more stable seemingly DC voltage, load on the input end of the photoelectrical coupler U3 of actuating equipment state output unit interface 8*, guarantee the conducting of photoelectrical coupler.
The photoelectrical coupler U3 of actuating equipment state output unit interface 8* selects TLP521 equally for use, except with actuating equipment driver part and the light-coupled isolation of data communication parts, also output level is converted to the high-low level that meets the TTL standard.
Power supply unit 9 adopts single-phase alternating current commentaries on classics+12V (VCC1) direct current regulation circuit scheme, and selected three terminal regulator U1 is L78L12AB; The used VCC2 direct supply of actuating equipment state output unit interface 8* is+5V, provided by the power supply unit 5 (seeing embodiment one) of data communication parts.
The temperature range of selected chip is as follows on the actuating equipment driver part: and three terminal regulator U1 chip L78L12AB is-and 40C ° is to+125C °; Photoelectrical coupler U2, U3 chip TLP521 be-55C ° is to+100C °; Triode Q18050 is-55C ° is to+135C °; Controllable silicon Q2BTA26BW is-40C ° is to+125C °.This make the actuating equipment driver part can be operated in-40C ° is in+85C ° environment.
Claims (4)
1, a kind of single-phase control node apparatus of wireless sensor network that is applied to many occasions such as livestock and poultry facility cultivation surroundings monitoring, the environmental monitoring of plant facility cultivation, storage environmental monitoring, human settlement's monitoring, it is characterized in that comprising actuating equipment driver part and data communication parts, the controllable silicon trigger element interface (7*) of actuating equipment driver part links to each other with the connectivity port (J7) of data communication parts, and the actuating equipment state output unit interface (8*) of actuating equipment driver part links to each other with the connectivity port (J8) of data communication parts;
Described data communication parts comprise processor unit (1), identify label unit (2), memory cell (3), wireless transmit/receive units (4), power supply unit (5), wireless transmit/receive units (4) connects processor unit (1), be used for time of reception synchronizing signal and base stations control instruction (starting or stoping instruction), and send the actuating equipment status signal to the base station; Processor unit (1) is used for judging and the level value handling the packet that receives and obtain connectivity port (J8) is kept at the packet that will send, the time synchronized counter if time synchronizing signal is then reset, if steering order is then exported high or low level (starting or stoping instruction) to connectivity port (J7), send by the Route Selection path cycle as status signal with the level value of the connectivity port (J8) that obtains; Identify label unit (2) connects processor unit (1), is used to equipment that only identifier is provided; Memory cell (3) connects processor unit (1), as replenishing of non-volatile program under the not enough situation of processor unit (1) internal storage space and data storage; Power supply unit (5) provides operating voltage for whole data communication parts;
Described actuating equipment driver part comprises SCR control unit (6), controllable silicon trigger element (7), actuating equipment state output unit (8), power supply unit (9), controllable silicon trigger element (7) connects SCR control unit (6), is used for high or low level conducting or blocking-up SCR control unit (6) by controllable silicon trigger element interface (7*) input; The break-make control actuating equipment start and stop that exchange main circuit are controlled in SCR control unit (6) thereby be used to; Actuating equipment state output unit (8) connects SCR control unit (6), be used to detect SCR control unit (6) thus break-make obtain the duty of actuating equipment, and in the mode of high-low level to actuating equipment state output unit interface (8*) output, high or low level is represented the state of starting or stoping respectively; Power supply unit (9) provides operating voltage for the entire equipment driver part.
2, single-phase control node apparatus of wireless sensor network according to claim 1 is characterized in that in the data communication parts processor unit (1) mainly is made up of microprocessor chip " U1 "; Identify label unit (2) mainly produces chip " U2 " by random number to be formed, and it links to each other with the general purpose I/O interface of microprocessor chip " U1 "; Memory cell (3) mainly is made up of serial flash memory dies " U3 ", and it links to each other with Asynchronous Serial Interface with the universal synchronous of microprocessor chip " U1 "; Radio receiving transmitting module (4#) and radio receiving transmitting module interface (4*) that wireless transmit/receive units (4) is made up of radio transmitting and receiving chip " U4 " and peripheral circuit thereof are formed, and wherein radio receiving transmitting module interface (4*) links to each other with the Serial Peripheral Interface (SPI) of microprocessor chip " U1 " by connectivity port (J1); The data line of communication debugging interface (J6) links to each other with the JATG interface of microprocessor chip " U1 " through drawing the back on the resistance; Connectivity port (J7) links to each other with the general purpose I/O interface of microprocessor chip " U1 " respectively with connectivity port (J8).
According to claim 1,2 described single-phase control node apparatus of wireless sensor network, it is characterized in that in the data communication parts that 3, the microprocessor chip " U1 " in the processor unit (1) can be divided into according to the function at this device:
1) Serial Peripheral Interface (SPI) module is used for packet that buffer memory receives by wireless transmit/receive units (4) and the packet that will send;
2) processor cores module is used to judge and handle the packet that receives, and the time synchronized counter if time synchronizing signal is then reset if steering order is then judged enabled instruction or halt instruction, and is provided with the value of control port module register; And the value of reading control mouth module register is kept in the packet it as status signal, sends by the Route Selection path cycle;
3) control port module is used for according to the setting of processor cores module to this module register, and (J7) exports high or low level to the connectivity port, and the level value of connectivity port (J8) is kept in this module register;
4) timer module is as the timer of cycle transmit status signal and the time synchronized counter that keeps the whole sensor Network Synchronization.
4, single-phase control node apparatus of wireless sensor network according to claim 1 is characterized in that in the actuating equipment driver part, adopts controllable silicon " Q2 " control to exchange the break-make of main circuit in SCR control unit (6); Triode " Q1 " in the controllable silicon trigger element (7) connects controllable silicon " Q2 ", by control triode " Q1 " thus conducting or place the controllable silicon " Q2 " that exchanges main circuit by conducting or blocking-up; Controllable silicon trigger element interface (7*) adopts photoelectrical coupler " U2 " to be connected with triode " Q1 ", with actuating equipment driver part and the light-coupled isolation of data communication parts; In actuating equipment state output unit (8), place the current transformer MUTUAL that exchanges main circuit to connect follow-up diode and electric capacity, load on the input end of the photoelectrical coupler " U3 " of actuating equipment state output unit interface (8*); Actuating equipment state output unit interface (8*) also changes the output level dress into meet the TTL standard high-low level except that with actuating equipment driver part and the light-coupled isolation of data communication parts.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101650567B (en) * | 2009-07-29 | 2011-06-08 | 厦门集芯科技有限公司 | Zero-emission pig-raising wireless measuring and controlling system |
| CN102238758A (en) * | 2011-08-08 | 2011-11-09 | 东南大学 | Wireless multimedia broadband sensor network node device and operating method thereof |
| CN102386942A (en) * | 2011-05-19 | 2012-03-21 | 东南大学 | Single/three-phase control node device of wireless sensor network |
| CN105223939A (en) * | 2015-11-06 | 2016-01-06 | 武汉市农业机械化科学研究所 | Be applicable to the multi-source heat transfer agent data acquisition and controlling integration fexible unit of agriculture Internet of Things application |
| CN106100456A (en) * | 2016-08-23 | 2016-11-09 | 东南大学 | The control node apparatus of a kind of three phase electric machine Comprehensive Control and operation method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201289605Y (en) * | 2008-08-01 | 2009-08-12 | 东南大学 | Single-phase control node device for wireless sensor network |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201289605Y (en) * | 2008-08-01 | 2009-08-12 | 东南大学 | Single-phase control node device for wireless sensor network |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101650567B (en) * | 2009-07-29 | 2011-06-08 | 厦门集芯科技有限公司 | Zero-emission pig-raising wireless measuring and controlling system |
| CN102386942A (en) * | 2011-05-19 | 2012-03-21 | 东南大学 | Single/three-phase control node device of wireless sensor network |
| CN102386942B (en) * | 2011-05-19 | 2014-03-12 | 东南大学 | Single/three-phase control node device of wireless sensor network |
| CN102238758A (en) * | 2011-08-08 | 2011-11-09 | 东南大学 | Wireless multimedia broadband sensor network node device and operating method thereof |
| CN102238758B (en) * | 2011-08-08 | 2014-10-29 | 东南大学 | Wireless multimedia broadband sensor network node device and operating method thereof |
| CN105223939A (en) * | 2015-11-06 | 2016-01-06 | 武汉市农业机械化科学研究所 | Be applicable to the multi-source heat transfer agent data acquisition and controlling integration fexible unit of agriculture Internet of Things application |
| CN105223939B (en) * | 2015-11-06 | 2018-06-08 | 武汉市农业科学技术研究院农业机械化科学研究所 | Suitable for the multi-source heat transfer agent acquisition of agriculture Internet of Things application and the integrated fexible unit of control |
| CN106100456A (en) * | 2016-08-23 | 2016-11-09 | 东南大学 | The control node apparatus of a kind of three phase electric machine Comprehensive Control and operation method |
| CN106100456B (en) * | 2016-08-23 | 2019-08-20 | 东南大学 | A kind of the control node device and operation method of three-phase motor comprehensively control |
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| CN101329574B (en) | 2010-12-22 |
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