A kind of epidermis wireless temperature measuring device
Technical field
This utility model belongs to the thermometry field, particularly relates to a kind of epidermis wireless temperature measuring device, is suitable for the temperature survey of high temperature epidermis.
Background technology
In iron-making production, the internal temperature of blast furnace, air stove, hot blast blowing device and hot blast air-supply pipeline is very high, reaches 1200 ℃ or higher.The industrial insulating inner lining that installs additional between pyritous inside and outer metallic surface usually reduces hull-skin temperature and heat energy loss, in case liner damage, can make the outer metallic surface local temperature too high, under the effect of pressure, might play bag even explosion, handle untimelyly may produce security incident.In these places, monitoring, watch-dog hull-skin temperature are crucial work.
We adopted portable infrared radiation thermometer manual inspection mode to detect these temperature in the past, infrared radiation thermometer relies on the infrared energy of target area to measure temperature, the angle of aiming test point, all can influence the Temperature numerical of measuring with test point distance, the time of aiming and the precision of aiming etc.Because the randomness of manual detection is bigger, it is all variant that different people, different angles detect the temperature that same point draws.Some test point is positioned at unsafe corner in addition, and manual detection is very inconvenient also dangerous sometimes, and these points usually can be omitted.In a word, artificial data of gathering generally can't quantitative analysis, tracking, is not easy to find out trend, can't shift to an earlier date anticipation, and it is unfavorable that this improves the blast furnace technology level to us, also is easy to generate hidden danger.
Summary of the invention
The purpose of this utility model is to provide a kind of epidermis wireless temperature measuring device, has solved the high-temperature condition lower surface and has adsorbed thermometric reliability and accuracy problem, has reduced power consumption.
This utility model comprises wireless temperature measurement terminal, wireless network transmissions agreement (KZ-710), wireless repeater, wireless collection device, computer, wireless audible-visual annunciator, wireless display screen, the wireless temperature measurement terminal is installed on the measurement point according to arts demand, promptly links to each other with the thermometric epidermis of needs; Wireless repeater is according to wireless temperature measurement terminal physical location, and according to the open ground reception and transmission range, after having or not error code, the test of whether transmission channel is unobstructed, have or not accident future aspect in 24 hours by instrument, be arranged in field position, receive the data of wireless temperature measurement terminal and other wireless repeaters and transmit by the wireless network transmissions agreement; The wireless collection device is installed in master-control room, receives the temperature information of wireless repeater and wireless temperature measurement terminal emission, and links to each other with computer by the RS232 bus, carries out the analysis of data by computer; Wireless audible-visual annunciator, wireless display screen wall hanging realize that in the most stable position of master-control room wireless signal data show and the warning that exceeds standard constantly.
Wireless temperature measurement terminal 1 is carried out skin temperature and is measured, give wireless repeater and wireless collection device by wireless network transmissions agreement (KZ-710) with the collecting temperature transfer of data, wireless repeater is transferred to the wireless collection device with the data that receive by wireless network transmissions agreement (KZ-710), the wireless collection device reaches computer with image data by the RS232 serial ports to carry out data analysis, gathers, computer is finished the processing of point for measuring temperature temperature data and is shown with visual format, as night shift room monitoring analysis foundation; Computer will need the large-size screen monitors video data to reach the wireless collection device by the RS232 serial ports, and the wireless collection device reaches wireless display screen by wireless network transmissions agreement (KZ-710) with data and shows constantly; If situations such as data failure and mistake take place, computer reaches the wireless collection device with warning message by the RS232 serial ports, and the wireless collection device reaches wireless audible-visual annunciator by wireless protocols (KZ-710) with warning message, carries out sound and light alarm, prompting post worker in time takes measures.
The wireless temperature measurement terminal comprises pick off, place in circuit unit, conversion circuit unit, data processing unit, wireless transceiver circuit unit, six assemblies of battery, and battery directly links to each other with data processing unit by lead, is the entire circuit power supply; Data processing unit links to each other with place in circuit, change-over circuit, radiating circuit by lead and multi-group data line, realizes the supply of electric power and the work control of each circuit; Pick off directly links to each other with place in circuit by lead-in wire, by relatively obtaining pick off two ends resistance with reference resistance; Place in circuit links to each other with change-over circuit by data wire, converts the resistance information transmission of measuring to digital quantity to change-over circuit; Change-over circuit links to each other with data processing unit by one group of six roots of sensation data wire, digital information is transferred to data processing unit, data processing unit calculates by this digital quantity and obtains temperature value, data processing unit links to each other with radiating circuit by one group of ten data lines, and temperature information is launched.The operating circuit of whole thermometric terminal only concentrates on the disk inside of 80mm size, finishes collection, conversion and the emission work of data.This wireless temperature measurement terminal has solved the high-temperature condition lower surface from structure, temperature measurement circuit scheme and wireless transmission protocol and has adsorbed thermometric reliability and accuracy problem simultaneously, has reduced power consumption, has realized that the long-term continuous operation of single-unit high power lithium battery is more than at least 2 years.
Advantage of the present utility model is:
1, adopt this wireless temperature measurement terminal 1---KZ-710-BMXX, the temperature survey drift is little;
2, adopt KZ-710 wireless network transmissions agreement (KZ-710) between wireless temperature measurement terminal and wireless repeater, wireless repeater and the wireless collection device, each temperature measurement data can be transmitted by multipath simultaneously, improves transmission reliability, and is flexible for installation, convenient;
3, the antenna of wireless temperature measurement terminal, battery are built-in, waterproof and dampproof, are fit to industry spot and use; Whole system is simple and reasonable for structure, can all adopt battery powered to need not cabling;
4, do not have on-the-spot junction box, controller, do not have PLC, do not take up room, save electric power, save cost,
5, volume is little, and whole wireless temperature measurement terminal only has the cylinder size of 80mm*100mm.
Innovative point of the present utility model is the integrated of wireless temperature measurement terminating circuit, and the operating circuit of whole thermometric terminal only concentrates on the disk inside of 80mm size, finishes collection, conversion and the emission work of data.This wireless temperature measurement terminal has solved the high-temperature condition lower surface from structure, temperature measurement circuit scheme and wireless transmission protocol and has adsorbed thermometric reliability and accuracy problem simultaneously, has reduced power consumption, has realized that the long-term continuous operation of single-unit high power lithium battery is more than at least 2 years.
Description of drawings
Fig. 1 this utility model single node structural representation, wherein wireless temperature measurement terminal 1, wireless network transmissions agreement (KZ-710) 2, wireless repeater 3, wireless collection device 4, computer 5, wireless audible-visual annunciator 6, wireless display screen 7.
Fig. 2 this utility model system structure sketch map.
Fig. 3 this utility model structured flowchart.
The specific embodiment
As Fig. 1, this utility model structured flowchart, this device comprises: wireless temperature measurement terminal 1, wireless network transmissions agreement (KZ-710) 2, wireless repeater 3, wireless collection device 4, computer 5, wireless audible-visual annunciator 6, wireless display screen 7.Wireless temperature measurement terminal 1 is carried out skin temperature and is measured, give wireless repeater 3 and wireless collection device 4 by wireless network transmissions agreement (KZ-710) 2 with the collecting temperature transfer of data, wireless repeater 3 is transferred to wireless collection device 4 with the data that receive by wireless network transmissions agreement (KZ-710) 2, wireless collection device 4 reaches computer 5 with image data by the RS232 serial ports to carry out data analysis, gathers, computer 5 is finished the processing of point for measuring temperature temperature data and is shown with visual format, as night shift room monitoring analysis foundation; Computer 5 will need the large-size screen monitors video data to reach wireless collection device 4 by the RS232 serial ports, and wireless collection device 4 reaches wireless display screen 7 by wireless network transmissions agreement (KZ-710) 2 with data and shows constantly; If situations such as data failure and mistake take place, computer 5 reaches wireless collection device 4 with warning message by the RS232 serial ports, and wireless collection device 4 reaches wireless audible-visual annunciator 6 by wireless protocols (KZ-710) 2 with warning message, carries out sound and light alarm, prompting post worker in time takes measures.
As Fig. 2, this utility model system structure sketch map, S is a wireless temperature measurement terminal 1 among this figure, and R is a wireless repeater 3, and C is a wireless collection device 4, X is wireless display screen 7, B is wireless audible-visual annunciator 6.The quantity of wireless temperature measurement terminal 1, wireless repeater 3 can be any one value less than 255, any one wireless temperature measurement terminal 1 can be passed to measuring-signal any one wireless repeater 3 simultaneously, be not only one-one relationship, can increase the promptness and the reliability of signals collecting like this.Because above transfer of data adopts one-to-many or multi-to-multi mode,, and still can guarantee the timely and reliable of data so wireless repeater 3 by rational field layout, can reduce its usage quantity.
As Fig. 3 this utility model structured flowchart, wireless temperature measurement terminal 1 is carried out the measurement and the transmission work of Temperature numerical among this figure, comprising pick off, place in circuit unit, conversion circuit unit, data processing unit, wireless transceiver circuit unit, six assemblies of battery.Sensor acquisition skin temperature signal, and acquired signal delivered to the place in circuit unit, place in circuit is provided with reference resistance, compare the back with pick off two ends resistance and obtain pick off two ends resistance value, place in circuit exports this resistance to conversion circuit unit simultaneously, change-over circuit calculates the corresponding digital amount according to the pick off two ends resistance that obtains, and will draw digital quantity and give data processing unit, data processing unit calculates and obtains corresponding temperature information, gives the wireless transceiver circuit unit with the data of receiving and carries out wireless transmission; Wherein battery directly links to each other with data processing unit by lead, be the entire circuit power supply, rely on data processing unit to judge whether other circuit needs, need then transferring electric power, carry out date processing and transmission, not needing does not then provide electric power to keep resting state, has guaranteed the energy-conservation and low consumption of thermometric terminal, this thermometric terminal only needs a joint high power lithium battery power supply, sustainable work 2 years.Wireless temperature measurement terminal 1 focuses on 6 assemblies the disk inside of 80mm size fully simultaneously, finish collection, conversion and the emission work of data, reached the integrated of circuit, avoided the redundancy of circuit such as traditional constant-current source, constant pressure source, save the space, realized simplifying and efficiently of circuit.And the reference resistance method measured sensor two ends resistance inversion temperature method accuracy height of above-mentioned place in circuit, the measurement drift is little.
The wireless transmit/receive units of wireless temperature measurement terminal 1 is transferred to wireless repeater 3 by wireless network transmissions agreement (KZ-710) 2 with the Temperature numerical that draws, and carries out the transmitting-receiving work of data.Wireless repeater comprises data processing unit, wireless transmit/receive units, three assemblies of battery, after wireless transceiver circuit receives the Temperature numerical that thermometric terminal 1 emits, after data processing unit comparison conversion, launches through wireless transceiver circuit again.
The wireless transmit/receive units of wireless repeater 3 is transferred to wireless collection device 4 by wireless network transmissions agreement (KZ-710) 2 with the Temperature numerical that draws, and carries out the collection and the transmission work of data.After receiving data, wireless collection device 4 passes to computer 5 by the RS232 bus, the data of 5 pairs of collections of computer gather, analyze, the temperature that draws each point for measuring temperature shows the trend constantly that reaches, and will need the data presented anti-pass to give the data processing unit of wireless collection device 4, carry out data by data processing unit instruction wireless transceiver circuit and send to wireless display screen 7, carrying out constantly, numerical value shows.Temperature numerical exceeds fence coverage or data are made mistakes if draw, computer 5 is given wireless collection device data processing unit by bus RS232 anti-pass, data processing unit instruction wireless transmit/receive units sends to wireless audible-visual annunciator 6 with signal and carries out sound and light alarm, and prompting post worker takes safeguard procedures.