CN201302464Y - Wireless humiture detecting system - Google Patents
Wireless humiture detecting system Download PDFInfo
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- CN201302464Y CN201302464Y CNU2008202207853U CN200820220785U CN201302464Y CN 201302464 Y CN201302464 Y CN 201302464Y CN U2008202207853 U CNU2008202207853 U CN U2008202207853U CN 200820220785 U CN200820220785 U CN 200820220785U CN 201302464 Y CN201302464 Y CN 201302464Y
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Abstract
A wireless humiture detecting system comprises a humiture detecting and wireless transmitting-receiving unit, a relay station and a main station, wherein data transfer between the humiture detecting and a wireless transmitting-receiving unit, between an adjacent relay station, an upper grade and a lower grade adjacent relay stations and between each tail grade relay station and a main station adopts wireless communication. Since the data transfer between the humiture detecting and the wireless transmitting-receiving unit, between the adjacent relay station, the upper grade and the lower grade adjacent relay stations and between each tail grade relay station and the main station adopts a wireless communication mode, the humiture detecting and wireless transmitting-receiving unit can be arranged on any needed position, and can be disassembled at random, the relay station can be arranged according to the distance which needs to transfer, detecting range and transfer distance are led to have expandability, and meanwhile, since cables are used, the detection and maintenance work of the cables are further avoided, and compared with a traditional wire connection mode, power consumption of the technical proposal of the utility model is lower.
Description
Technical field
The utility model relates to the humiture detection technique field in the industrial or agricultural, relates in particular to a kind of wireless humiture detection system.
Background technology
Temperature, humidity are the physical quantity that often will measure in agricultural, in the industry in as fields such as tobacco, grain depot, cotton spinning chemical fibre, museum, freezers, are the principal elements that influences quality quality in tobacco, grain, cotton-spinning fabric, antiques, cold chain product and other items the storage process.Units such as the many grain storages of present China still adopt the thermometric hygrometric instrument and manually make a copy of, manage the classic method that combines, not only efficient is low for this, and often since error in judgement and management ineffective cause the part or on a large scale the grain phenomenon of going mouldy happen occasionally.In addition, temperature-humidity signal transmission line under the wired connection form needs the modelled signal modulate circuit to comprise circuit such as electric bridge, amplification, filtering, isolation at present, and need through complicated calibration, calibration process, measuring accuracy is difficult to be guaranteed, and often unsatisfactory at aspects such as the linearity, repeatability, interchangeability, consistance, this in addition cable ways of connecting has also limited sensing range and transmission range.
The utility model content
The purpose of this utility model provides a kind of wireless humiture detection system, adopts wireless transmission method, and sensing range, transmission range are expanded greatly, alleviates the manually-operated workload.
A kind of wireless humiture detection system, wherein: comprise humiture detection and wireless transmit/receive units, relay station, main website, wherein, the data between humiture detection and wireless transmit/receive units and neighboring relay stations, the superior and the subordinate's neighboring relay stations and each final stage relay station and the main website transmit and all adopt wireless telecommunications.
Described wireless humiture detection system, wherein: described humiture detects and wireless transmit/receive units comprises: Temperature Humidity Sensor, first microprocessor, radio receiving transmitting module, memory, time block, wherein, the memory data input/output end port connects the first data input/output end port of first microprocessor, the data input/output end port of Temperature Humidity Sensor connects the second data input/output end port of first microprocessor, and the 3rd data input/output end port of first microprocessor connects the first data input/output end port of radio receiving transmitting module; Described time block is connected between described Temperature Humidity Sensor feeder ear, first microprocessor feeder ear, radio receiving transmitting module feeder ear and memory feeder ear and the power supply.
Described wireless humiture detection system, wherein: described relay station includes radio receiving transmitting module, level switch module, second microprocessor, the system monitoring module, the address configuration module, wherein, the data input/output end port of radio receiving transmitting module connects the first data input/output end port of level switch module, the second data input/output end port of level switch module connects the first data input/output end port of second microprocessor, the signal output part of the address signal input end link address configuration module of second microprocessor, the data input/output end port of system monitoring module connects the second data input/output end port of second microprocessor.
Described wireless humiture detection system, wherein: described main website comprises radio receiving transmitting module, level switch module, second microprocessor, the system monitoring module, the address configuration module, communication module, wherein, the data input/output end port of radio receiving transmitting module connects the first data input/output end port of level switch module, the second data input/output end port of level switch module connects the first data input/output end port of second microprocessor, the signal output part of the address signal input end link address configuration module of second microprocessor, the data input/output end port of system monitoring module connects the second data input/output end port of second microprocessor, and the 3rd data input/output end port of second microprocessor connects the data input/output end port of communication module.
The utility model adopts technique scheme will reach following technique effect:
Wireless humiture detection system of the present utility model, humiture detection and wireless transmit/receive units and neighboring relay stations, data between the superior and the subordinate's neighboring relay stations and each final stage relay station and the main website transmit the mode that all adopts wireless telecommunications, humiture detection and wireless transmit/receive units can be arranged on the position of any needs, can arbitrarily dismantle, the distance that can transmit as required is provided with the quantity of relay station, make sensing range and transmission range have extensibility, simultaneously owing to do not use stube cable, also avoided the detection maintenance work of cable, simultaneously, it is lower to compare the power consumption of traditional wired connection mode technical solutions of the utility model.
Description of drawings
Fig. 1 is the structure principle chart of the utility model wireless humiture detection system;
Fig. 2 is the theory diagram of detection of the utility model humiture and wireless transmit/receive units;
Fig. 3 is the theory diagram of utility model relay station;
Fig. 4 is the theory diagram of utility model main website;
Fig. 5 is the circuit theory diagrams of detection of utility model humiture and wireless transmit/receive units;
Fig. 6 is the circuit theory diagrams of utility model relay station or main website.
Embodiment
Embodiment:
A kind of wireless humiture detection system, comprise humiture detection and wireless transmit/receive units, relay station, main website, wherein, between humiture detection and wireless transmit/receive units and the neighboring relay stations (detect and wireless transmit/receive units between directly dock the relay station that transmits and be called telegon again), between the superior and the subordinate's neighboring relay stations with humiture and the transmission of the data between each final stage relay station and the main website all adopt wireless telecommunications, its structure is seen shown in Figure 1; As wireless humiture detection system of the present utility model is set in a large-scale grain depot, need the diverse location in the warehouse install altogether that humiture detects and wireless transmit/receive units m, the distance of each humiture detection and wireless transmit/receive units and main website is far away, need multistage relay station to finish intermediate transfer work, see telegon, relay station n (1)～n (i), relay station p (1)～p (r), telegon, relay station n (1)～n (i), relay station p (1)～p (r) constitute communication network.
Fig. 2 is the theory diagram of detection of the utility model humiture and wireless transmit/receive units; Described humiture detects and wireless transmit/receive units comprises: Temperature Humidity Sensor, first microprocessor, radio receiving transmitting module, memory, time block, wherein, the memory data input/output end port connects the first data input/output end port of first microprocessor, the data input/output end port of Temperature Humidity Sensor connects the second data input/output end port of first microprocessor, and the 3rd data input/output end port of first microprocessor connects the first data input/output end port of radio receiving transmitting module; Described time block is connected between described Temperature Humidity Sensor feeder ear, first microprocessor feeder ear, radio receiving transmitting module feeder ear and memory feeder ear and the power supply.In the specific embodiment, humiture detect and the circuit theory diagrams of wireless transmit/receive units as shown in Figure 5: humiture detects and wireless transmit/receive units mainly comprises first microprocessor U1 (adopting the AT89C4051 single-chip microcomputer), timing chip U2 (adopting the C7555 low power consumption integrated circuit chip), switch triode Q1 (is the positive-negative-positive triode, the employing model is C9015), radio receiving transmitting module JP1 (adopting NRF905), memory U3 (adopts 24LC02 low-voltage serial memory, be mainly used to store the address number of detection of this humiture and wireless transmit/receive units), Temperature Humidity Sensor J4 (adopting digital-type intelligent Temperature Humidity Sensor SHT15), relay indicating light D1, and some peripheral cells.
Temperature Humidity Sensor J4 (SHT15) is a kind of monolithic intelligence sensor, and its hardware circuit is simple, carries out communication by two-wire serial interface and processor. strong interference immunity has greatly made things convenient for the application of Temperature Humidity Sensor at embedded measurement and control area.
1,2 pin of connector J6 connect respectively direct supply+,-utmost point, dc power signal forms 2 pin of voltage stabilizing VDD signal conveys to connector J5 after filter capacitor C15, C14 filtering; When 1,2 pin of connector J5 are connected, the VDD signal through behind the steering diode D3 respectively after filter capacitor C6, C8, C9, C10, C11, C12, C13 filtering, be sent to the power-feed section of the indicating circuit at first microprocessor U1, memory U3, Temperature Humidity Sensor J4, relay indicating light D1 place more respectively, be their power supplies, driving work; The VDD signal is being delivered to steering diode D4 continuation processing after steering diode D3 handles, the power supply signal after steering diode D4 handles is used to radio receiving transmitting module JP1 that power supply is provided again through capacitor C 16 filtering.
As 2 of connector J5, when 3 pin are connected, the VDD signal conveys is to the emitter of switch triode Q1, feeder ear 8 pin of timing chip U2,2 pin of connector J3, the base stage of switch triode Q1 is by resistance R 13, the capacitor C 7 RC circuit that constitute in parallel connect output terminal 3 pin of timing chip U2, the collector of switch triode Q1 connects the positive pole of steering diode D3,1 pin of connector J3,3 pin are respectively by first, second timing control circuit connects timing controlled input end 6 pin of timing chip U2 simultaneously, first timing control circuit comprises that a resistance R 4, the second timing control circuits are by slide rheostat R6, resistance R 12, R7 connects and composes; When 2,3 pin of connector J5 are connected, timing chip U2 works on power, behind connector J3 selection first or second timing control circuit, when timing controling signal arrives timing controlled input end 6 pin of timing chip U2, the output terminal 3 pin output low levels of timing chip U2, the emitter of driving switch triode Q1, collector conducting, then the indicating circuit and the radio receiving transmitting module JP1 at first microprocessor U1, timing chip U2, memory U3, Temperature Humidity Sensor J4, relay indicating light D1 place get electric work.
1 pin of first microprocessor U1 (RST pin) connects power supply VCC by capacitor C 3, meet GND after resistance R 2 in the working indicating, the light emitting diode D1 serial connection, first pin of connector J2 meets GND, crus secunda connects 8 pin (the T0 pin of first microprocessor U1, see mark " PZ "), this 8 pin input high level will start first microprocessor U1 work, if input low level, first microprocessor U1 is in the address number configuration status, and 8 pin of first microprocessor U1 connect power supply VCC by resistance R 3.If power supply VCC begins power supply, D1 is luminous for the indication diode, first microprocessor U1 work.
2,3,6,7 pin of first microprocessor U1 connect 6,5 pin of memory U3,4,1 pin of Temperature Humidity Sensor J4 (seeing mark " SCL1, SDA1, SCL2, SDA2 ") respectively; Be connected with the clock circuit of capacitor C 1, C2, crystal oscillator Y1 formation between 4,5 pin of first microprocessor U1; 9,11,13,14,15,16,17,18,19 pin of first microprocessor U1 connect 3,4,7,8,9,10,11,12,13 pin (seeing mark " TX-EN, TRX-CE, CD, AM, DR, MISO, MOSI, SCK, CSN ") of radio receiving transmitting module JP1 respectively.First microprocessor U1 is the core of total system, and components and parts send various control commands to the periphery, makes this unit according to the control program work of setting, and the course of work is as follows:
1) when 2,3 pin of connector J5 is connected, triode Q1 and timing chip U2 and the work of timing chip U2 peripheral circuit, timing chip U2 begins regularly, the output terminal 3 pin output high level of timing chip U2, triode Q1 ends, and circuit such as first microprocessor U1, radio receiving transmitting module JP1, Temperature Humidity Sensor J4, memory U3 are not worked; When timing chip U2 timing arrives, the 3 pin output low levels of timing chip U2, triode Q1 conducting, the capacitor C 4 that 2 pin of timing chip U2 connect begins discharge; After the triode Q1 conducting, first microprocessor U1, radio receiving transmitting module JP1, Temperature Humidity Sensor J4, memory U3 etc. start working.After first microprocessor U1 resets and starts working, elder generation's initialization, then by its 2 pin, 3 pin read memory U3 inside address number, read the detected humiture data of Temperature Humidity Sensor J4 by its 6 pin, 7 pin, afterwards, delivering in the radio receiving transmitting module JP1 through its 16 pin, 17 pin, 18 pin, 19 pin after address number and the packing of humiture uniform data, outwards send wireless data by radio receiving transmitting module JP1.The timing chip U2 end of discharging, the 3 pin output high level of timing chip U2, triode Q1 ends, and circuit such as first microprocessor U1, radio receiving transmitting module JP1, Temperature Humidity Sensor J4, memory U3 are not worked; Timing chip U2 restarts regularly, and work goes round and begins again.When connecting between 2,1 pin of connector J3, timing X minute; When 2,3 of connector J3 connects, timing Y minute; Timing is controlled by the resistance of the resistance in timing chip U2 and first, second timing control circuit.
2) when 1,2 pin of connector J5 were connected, triode Q1 and timing chip U2 and first, second timing control circuit were not all worked; Circuit such as first microprocessor U1, radio receiving transmitting module JP1, Temperature Humidity Sensor J4, memory U3 are started working, first microprocessor U1 resets and starts working, after the initialization, by 2 pin, 3 pin read memory U3 inside address number, read the detected humiture data of Temperature Humidity Sensor J4 by 6,7 pin, afterwards, delivering in the radio receiving transmitting module JP1 through 17,18,19 pin 16, after the packing of address number and humiture uniform data, outwards send wireless data by radio receiving transmitting module JP1; Behind the certain interval of time, repeat the above-mentioned course of work, timing described here is controlled by the program of first microprocessor U1 inside.
First microprocessor U1 electrification reset, after the initialization, start working:
1) detect the level of 8 pin, as be high, then enter normal mode of operation:
At first read the address number (this address number is used to differentiate current humiture detection and which number wireless transmit/receive units is) that memory U3 internal configurations is crossed by 2,3 pin; Read the humiture data of Temperature Humidity Sensor J4 then by 6,7 pin, then packing data is sent to radio receiving transmitting module JP1 inside by MISO, MOSI, SCK, CSN, putting radio receiving transmitting module JP1 by TX_EN, TRX_CE at last is sending mode, the humiture data that collect, address number, battery electric quantity are sent to radio receiving transmitting module JP1 by 17,18,19 pin 16,, and JP1 sends data to telegon by radio receiving transmitting module.
2) detect the level of PZ, as be low, then enter the address configuration pattern:
At first by its 9, it is receiving mode that 11 pin output signals are put radio receiving transmitting module JP1, detect the level of 15 pin then, if 15 pin level are high, illustrate that radio receiving transmitting module JP1 has received data, then by its 16,17,18,19 pin are come the data read that radio receiving transmitting module JP1 receives, the address number data that receive are passed through 2,3 pin write in the memory U3, then by 9, it is sending mode that 11 pin output signals are put radio receiving transmitting module JP1, by its 16,17,18,19 pin are sent to radio receiving transmitting module JP1 to reply data, control radio receiving transmitting module JP1 returns answer signal to transmit leg, to confirm to receive data.
Fig. 3 is the theory diagram of utility model relay station; Described relay station includes radio receiving transmitting module, level switch module, second microprocessor, the system monitoring module, the address configuration module, wherein, the data input/output end port of radio receiving transmitting module connects the first data input/output end port of level switch module, the second data input/output end port of level switch module connects the first data input/output end port of second microprocessor, the signal output part of the address signal input end link address configuration module of second microprocessor, the data input/output end port of system monitoring module connects the second data input/output end port of second microprocessor.
Fig. 6 is the circuit theory diagrams of relay station or main website in this specific embodiment:
Wherein, relay station mainly comprises rectifier bridge U1, voltage stabilizer U2, the second microprocessor U3, system monitoring chip U4, connector JP1, exclusion J2, radio receiving transmitting module JP2, triode Q1～Q10 (wherein, triode Q1～Q4 is a NPN type triode, Q5～Q10 is the positive-negative-positive triode), two condition indication diode D6, (diode D6 lights expression and receives data D7, D7 lights expression and sends data, two condition indication diode D6, the anodal power supply VCC that connects of D7, negative pole connects 12 of the second microprocessor U3 respectively, 11 pin, it is lighted by the second microprocessor U3 and controls) and peripheral cell etc. form.Rectifier bridge U1 adopts 2W10, and main effect changes alternating current into direct current exactly; Voltage stabilizer U2 adopts LM2940, and respectively forming components and parts for relay station provides stable operating voltage VCC, voltage VCC again after diode D2, D3, D5 handle step-down become voltage VCE; The second microprocessor U3 adopts the AT89S52 single-chip microcomputer, is the core of total system, and circuit sends control command to the periphery, makes system according to the program operate as normal of setting; System monitoring chip U4 adopts the X5045 chip, is used for monitoring the duty of the second microprocessor U3; JP1 is double eight pin connectors, and exclusion J2 is connected between power supply VCC and ground, be mainly used to dispose the address of relay station, be used for the second microprocessor U3 and read the configuration address that connector JP1 signal is determined this relay station, exclusion J2 is the exclusion of 9*10K, is used for drawing high the corresponding level (seeing mark " N0～N7 ") that connects pin of the second microprocessor U3; Radio receiving transmitting module JP2 adopts NRF905, carries out the reception and the transmission of data; Triode Q1～Q4 is a NPN type triode (C9013), and triode Q5～Q10 is positive-negative-positive triode (C9015), mainly as the corresponding level conversion that is connected pin of the second microprocessor U3 and radio receiving transmitting module JP2.Capacitor C 1～C4, C12～C14, C16～C19 and C22 are power filtering capacitor, wherein, capacitor C 12～C14 is used to power supply VCE output signal to carry out filtering, and power supply VCE is used to radio receiving transmitting module JP2, triode Q5～Q10 to power; C16～C19 and C22 are used to power supply VCC output signal to carry out filtering, and wherein, power supply VCC is used to power supplies such as the second microprocessor U3, system monitoring chip U4, connector JP1, exclusion J2 and triode Q1～Q10.In addition, connector J1 is 7 pin contact pin interface of external programmer (not shown), be used for the second microprocessor U3 is downloaded, connect together when the 6th pin of connector J1 and the 7th pin operate as normal, 7 pin (seeing mark " RST1 ") of the 7th pin connected system monitoring chip U4 of connector J1, the 6th pin of connector J1 connects 4 pin (seeing mark " RST ") of the second microprocessor U3, can make system monitoring chip U4 control resetting of the second microprocessor U3,5 pin of connector J1 connect 3 pin (seeing mark " SCK2 ") of the second microprocessor U3,4 pin of connector J1 connect 2 pin (seeing mark " MISO1 ") of the second microprocessor U3,3 pin of connector J1 connect 1 pin (seeing mark " MOSI1 ") of the second microprocessor U3,2 of connector J1,1 pin provides power supply for external programmer, 1 of connector J1,2,3,4,5 several pins do not participate in the control of native system, provide interface for the second microprocessor U3 downloads.
43,42,41,40 pin of the second microprocessor U3 respectively with the corresponding connection of 6,5,2,1 pin of system monitoring chip U4, system monitoring chip U4 is a watchdog circuit, and whether operate as normal of the second microprocessor U3 is monitored in the instruction of 40 pin by the second microprocessor U3; 18 of the second microprocessor U3,19,20,25,8,9 pin connect triode Q10 respectively, Q5, Q6, Q7, Q8, the base stage of Q9 (seeing mark " SO; S1; S2; S7; S8; S9 "), triode Q10, Q5, Q6, Q7, Q8, the emitter of Q9 connects 3 of radio receiving transmitting module JP2 respectively, 4,5,11,12,13 pin (seeing mark " TX-EN; TRX-CE; PWRUP; MOSI; SCK; CSN "), 18 of the second microprocessor U3,19,20,25,8,9 pin are controlled triode Q10 respectively, Q5, Q6, Q7, Q8, the conducting of Q9 makes 3 of radio receiving transmitting module JP2,4,5,11,12,13 pin obtain signal; 7,8,9,10 pin of radio receiving transmitting module JP2 connect the base stage (seeing mark " CD, AM, DR, MISO ") of triode Q1, Q2, Q3, Q4 respectively, the emitter of triode Q1, Q2, Q3, Q4 connects 21,22,23,24 pin (seeing mark " S3, S4, S5, S6 ") of the second microprocessor U3 respectively, and 7,8,9,10 pin of radio receiving transmitting module JP2 make 21,22,23,24 pin of the second microprocessor U3 obtain signal by control triode Q1, Q2, Q3, Q4 conducting.
The concrete course of work is as follows:
The second microprocessor U3 electrification reset, after the initialization, start working, at first the second microprocessor U3 sends to system monitoring chip U4 by its 40 pin and feeds the dog's life order, in case 7th pin and 6th pin of the 7th pin of locking system monitoring chip U4 by connector J1 send reset signal to the 4th human hair combing waste of the second microprocessor U3, prevent that the second microprocessor U3 from resetting.Then, it is receiving mode that 18,19 pin of the second microprocessor U3 are put radio receiving transmitting module JP2 through control triode Q10, Q5, is used for receiving the wireless data that send the outside; Simultaneously, the second microprocessor U3 constantly detects the level of 23 pin, if the level of its 23 pin is low, then continue to detect, and the dog's life order is fed in transmission, if the level of its 23 pin is high, illustrate that then radio receiving transmitting module JP2 has received data, radio receiving transmitting module JP2 controls the level of its 10 pin, the second microprocessor U3 control its 25,8, thereby the level of 9 pin drives triode Q4, Q7, Q8, the data read that the Q9 conducting receives radio receiving transmitting module JP2 is gone into second microprocessor U3 and the verification, if verification is incorrect, then will not receive, if verification is correct, then the second microprocessor U3 is by 18,19 foot control system triode Q10, it is sending mode that Q5 puts radio receiving transmitting module JP2, reply data is passed through 24 of the second microprocessor U3,25,8,9 pin are sent to the respective pin of radio receiving transmitting module JP2, radio receiving transmitting module JP2 returns answer signal to sending station then, and expression correctly receives data; After being sent completely, second microprocessor U3 control radio receiving transmitting module JP2 sends the data that received to main website again, after being sent completely, it is receiving mode that the second microprocessor U3 puts radio receiving transmitting module JP2, waits for the answer signal of main website, if in official hour, do not receive the answer signal of main website, then send N time continuously, if still do not receive the answer signal of main website, then send the data that receive to the X station, the course of work is the same with main website; If still do not receive answer signal, then the neighbour who stands to X stands and sends the data that receive, and the course of work is the same with main website; If still do not receive answer signal, then abandon this secondary data and transmit, wait for the arrival of new data, work so goes round and begins again.
Fig. 4 is the theory diagram of utility model main website; Described main website comprises radio receiving transmitting module, level switch module, second microprocessor, the system monitoring module, the address configuration module, communication module, wherein, the data input/output end port of radio receiving transmitting module connects the first data input/output end port of level switch module, the second data input/output end port of level switch module connects the first data input/output end port of second microprocessor, the signal output part of the address signal input end link address configuration module of second microprocessor, the data input/output end port of system monitoring module connects the second data input/output end port of second microprocessor, and the 3rd data input/output end port of second microprocessor connects the data input/output end port of communication module.
The circuit theory of main website as shown in Figure 6, mainly comprise rectifier bridge U1, voltage stabilizer U2, the second microprocessor U3, system monitoring chip U4, level transferring chip U5, level transferring chip U6, phase inverter U7, communication interface U9, connector JP1, radio receiving transmitting module JP2, exclusion J2, triode Q1～Q10 (wherein, triode Q1～Q4 is a NPN type triode, and Q5～Q10 is the positive-negative-positive triode) and some peripheral cells compositions.
Rectifier bridge U1, voltage stabilizer U2, the second microprocessor U3, system monitoring chip U4, connector JP1, radio receiving transmitting module JP2, exclusion J2, triode Q1～Q10 are (wherein, triode Q1～Q4 is a NPN type triode, Q5～Q10 is the positive-negative-positive triode) identical with setting, the effect of relay station, repeat no more here; Connector JP3 is double three pin connectors, they are 3 years old, 4 pin connect 5 of the second microprocessor U3 respectively, 7 pin (seeing mark " RXD; TXD "), 1 of connector JP3,2 pin connect 1 of level transferring chip U6 respectively, 4 pin (seeing mark " RXD1; TXD1 "), 5 of connector JP3,6 pin connect 12 of level transferring chip U5 respectively, 11 pin (seeing mark " RXD0; TXD0 "), as 3 of connector JP3,4 pin respectively with its 1,2 pin are corresponding to be connected, the second microprocessor U3 links to each other with level transferring chip U6, as 3 of connector JP3,4 pin respectively with its 5,6 pin are corresponding to be connected, and the second microprocessor U3 links to each other with level transferring chip U5; Level transferring chip U5 is a MAX232 type level transferring chip, is responsible for the Transistor-Transistor Logic level of the second microprocessor U3 is converted to 232 level, so that communicate with total control computer; Level transferring chip U6 is the MAX485 level transferring chip, is responsible for the Transistor-Transistor Logic level of the second microprocessor U3 is converted to 485 level, is used for communicating with 485 communication ports of industrial computer PLC; Phase inverter U7 adopts the 74HC04 cake core, its 1 pin connects 10 pin (seeing mark " CN ") of the second microprocessor U3,2 pin of phase inverter U7 connect 2,3 pin of level transferring chip U6, phase inverter U7 is used for the level of second microprocessor U3 output is carried out the control level conversion chip U6 communication of anti-phase back: phase inverter U7 carries out anti-phase to the 10 pin output signals of the second microprocessor U3, high level is become low level, prevent the second microprocessor U3 reset its 10th pin of back be high level mistake to level transferring chip U6 transmit control signal cause communicating by letter undesired; Communication interface U9 is the RJ45 interface of standard, is used for connecting outside order wire.
The concrete course of work is as follows:
The second microprocessor U3 electrification reset after the initialization, is started working.
At first the second microprocessor U3 sends to system monitoring chip U4 by its 40 pin and feeds the dog's life order, in case locking system monitoring chip U4 sends reset signal to the second microprocessor U3, prevents that the second microprocessor U3 from resetting.Then, it is receiving mode that the second microprocessor U3 puts radio receiving transmitting module JP2 by 18,19 foot control system triode Q10, Q5, is used for receiving external data; Meanwhile, the second microprocessor U3 constantly detects the level of its 23 pin, if be low, then continue to detect, and send the order of hello dog's life, if be high, then explanation receives data, come and verification by the data read that 25,8,9 pin 24, receive radio receiving transmitting module JP2,, then will not receive if verification is incorrect; If verification is correct, the second microprocessor U3 by its 18,19 foot control system triode Q10, it is sending mode that Q5 puts radio receiving transmitting module JP2, reply data is passed through 24 of the second microprocessor U3,25,8,9 pin are sent to radio receiving transmitting module JP2, radio receiving transmitting module JP2 returns answer signal to sending station then, expression correctly receives data, next, connected mode by connector JP3 transmits the humiture data that receive to total control computer or industrial computer PLC, address number, battery electric quantity, the real-time demonstration of number of times that is forwarded in the data transfer procedure and transfer path, permanent preservation data on total control computer are in order to inquiry in the future.
The technical program adopts the design of digital hygro sensor and radio receiving transmitting module, has realized gathering system System carries out remote-wireless with host computer communicates by letter, and has satisfied the requirement of Real-Time Monitoring, has improved environment warm and humid Automaticity and high efficiency that degrees of data is gathered. The technical program also can connect air-conditioner, dehumidifying by industrial computer The external equipments such as machine are guaranteed suitable humiture environment in the silo. The technical program has simple and reliable and clever Easily characteristics alive have higher practicality and reliability, and cost is low, and is low in energy consumption, have good answering Use prospect.
Claims (4)
1, a kind of wireless humiture detection system, it is characterized in that: comprise humiture detection and wireless transmit/receive units, relay station, main website, wherein, between humiture detection and wireless transmit/receive units and the neighboring relay stations, between the superior and the subordinate's neighboring relay stations and the data between each final stage relay station and the main website transmit and all adopt wireless telecommunications.
2, wireless humiture detection system as claimed in claim 1, it is characterized in that: described humiture detects and wireless transmit/receive units comprises: Temperature Humidity Sensor, first microprocessor, radio receiving transmitting module, memory, time block, wherein, the memory data input/output end port connects the first data input/output end port of first microprocessor, the data input/output end port of Temperature Humidity Sensor connects the second data input/output end port of first microprocessor, and the 3rd data input/output end port of first microprocessor connects the first data input/output end port of radio receiving transmitting module; Described time block is connected between described Temperature Humidity Sensor feeder ear, first microprocessor feeder ear, radio receiving transmitting module feeder ear and memory feeder ear and the power supply.
3, wireless humiture detection system as claimed in claim 1 or 2, it is characterized in that: described relay station includes radio receiving transmitting module, level switch module, second microprocessor, the system monitoring module, the address configuration module, wherein, the data input/output end port of radio receiving transmitting module connects the first data input/output end port of level switch module, the second data input/output end port of level switch module connects the first data input/output end port of second microprocessor, the signal output part of the address signal input end link address configuration module of second microprocessor, the data input/output end port of system monitoring module connects the second data input/output end port of second microprocessor.
4, wireless humiture detection system as claimed in claim 3, it is characterized in that: described main website comprises radio receiving transmitting module, level switch module, second microprocessor, the system monitoring module, the address configuration module, communication module, wherein, the data input/output end port of radio receiving transmitting module connects the first data input/output end port of level switch module, the second data input/output end port of level switch module connects the first data input/output end port of second microprocessor, the signal output part of the address signal input end link address configuration module of second microprocessor, the data input/output end port of system monitoring module connects the second data input/output end port of second microprocessor, and the 3rd data input/output end port of second microprocessor connects the data input/output end port of communication module.
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| CNU2008202207853U CN201302464Y (en) | 2008-11-10 | 2008-11-10 | Wireless humiture detecting system |
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| CNU2008202207853U CN201302464Y (en) | 2008-11-10 | 2008-11-10 | Wireless humiture detecting system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101944281A (en) * | 2010-07-15 | 2011-01-12 | 嘉兴学院 | Wireless sensor network monitoring system of crop seed pregermination environment |
| CN102314166A (en) * | 2010-07-07 | 2012-01-11 | 柳平增 | Intelligent crop production measurement and control system based on Internet of Things |
| CN102384800A (en) * | 2011-08-17 | 2012-03-21 | 兰州海源科技有限责任公司 | Handheld debugger for flux temperature method heat sharing device in heating supply household metering system |
| CN103439370A (en) * | 2013-08-02 | 2013-12-11 | 杭州电子科技大学 | Temperature and humidity detection system in drying process |
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2008
- 2008-11-10 CN CNU2008202207853U patent/CN201302464Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102314166A (en) * | 2010-07-07 | 2012-01-11 | 柳平增 | Intelligent crop production measurement and control system based on Internet of Things |
| CN101944281A (en) * | 2010-07-15 | 2011-01-12 | 嘉兴学院 | Wireless sensor network monitoring system of crop seed pregermination environment |
| CN102384800A (en) * | 2011-08-17 | 2012-03-21 | 兰州海源科技有限责任公司 | Handheld debugger for flux temperature method heat sharing device in heating supply household metering system |
| CN103439370A (en) * | 2013-08-02 | 2013-12-11 | 杭州电子科技大学 | Temperature and humidity detection system in drying process |
| CN103439370B (en) * | 2013-08-02 | 2015-08-12 | 杭州电子科技大学 | The temperature/humiditydetection detection system of drying course |
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