CN103246250B - A kind of device for glass tempering furnace remote monitoring - Google Patents
A kind of device for glass tempering furnace remote monitoring Download PDFInfo
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- 239000011521 glass Substances 0.000 title claims abstract description 55
- 238000005496 tempering Methods 0.000 title claims abstract description 40
- 238000012544 monitoring process Methods 0.000 title claims abstract description 28
- 238000012545 processing Methods 0.000 claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 238000012546 transfer Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 4
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000003860 storage Methods 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 10
- 238000004891 communication Methods 0.000 description 8
- 230000006870 function Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000000137 annealing Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000001934 delay Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 230000003026 anti-oxygenic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000004148 unit process Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The invention discloses a kind of device for glass tempering furnace remote monitoring, described glass tempering furnace comprises body of heater, with glass conveyer line and heating arrangement in body of heater, also be provided with for the air-blast device to body of heater delivery air, the described device for glass tempering furnace remote monitoring comprises field signal acquisition unit and embedded web server; Described field signal acquisition unit comprises: temperature sensor; Pressure transducer; Micro controller module; First radio receiving transmitting module; Described embedded web server comprises: the second radio receiving transmitting module; Central processing module.The supervising device module volume of glass tempering furnace of the present invention is little, speed is fast, low in energy consumption, apparatus of the present invention be used for glass tempering furnace remote monitoring, this long-distance monitorng device can be extended to other industrial monitoring field.
Description
Technical field
The present invention relates to glass fibre reinforced plastic equipment field, be specifically related to a kind of device for glass tempering furnace remote monitoring, its remote monitoring is based on ZigBee wireless sensor network and embedded web server.
Background technology
The integrated research frontier of multidisciplinary height intersection, knowledge height is relate to as one, wireless sensor network receives the extensive concern of international community, be acknowledged as one of technology of having an immense impact on to 21st century, it has boundless application prospect.
Wireless sensor network (WSN.WirelessSensorNetwork) be a kind of self-organization, multi-hop, without subregion, foundation-free facility support network.Node cost is wherein low, volume is little, and network node majority is fixed, requires that node can the continuous firing long period; On communication mode, adopt short-range low power wireless communication technology, such as, can adopt ZigBee technology, bluetooth, Wi-Fi and the technology such as infrared.
ZigBee is a kind of a kind of short-distance wireless communication technology set up on the basis of IEEE802.15.4 agreement.Zigbee protocol stack employs Physical layer (PHY) and the media access control layer (MAC) of the definition of IEEE802.15.4 standard, and defines network layer (NWK), application layer (APL) and safe floor on this basis.It has the features such as networking cost is low, complexity is low, low in energy consumption, data rate is low, short distance, and these technical characterstics make ZigBee become the preferably selection building wireless sensor network.Just because of this, ZigBee technology can be widely used in the numerous areas such as Internet of Things, industrial automatic monitoring.At present, ZigBee technology has become one of study hotspot of low-data-rate wireless personal area network (LowRateWirelessPersonalAreaNetwork, LR-WPAN).
Glass tempering furnace is the equipment carrying out glass production, such as, publication number is that the Chinese invention patent application of CN102643016A discloses a kind of glass tempering furnace with Based Intelligent Control heating system, comprise by frame and electric control gear, tempering burner hearth is provided with in frame, the roller of conveying glass plate is provided with in tempering burner hearth, tempering burner hearth is provided with and organizes heating wire more, described tempering burner hearth upper, lower end extends through many groups of the connection of main tracheae to flow tube, to flow tube having multiple convection tube nozzle, the air intake opening of main tracheae is connected with manual ball valve, the air intake opening of manual ball valve is connected with electric Proportion valve by joint, electric Proportion valve is connected with electric control gear electrical control, make the NC instruction that electric Proportion valve can send according to electric control gear, correspondence enters the flow of the air of electric Proportion valve and the time regulates, this technology adopts the electrical equipment proportioning valve that is connected with electric control gear to regulate the flow of air and time that enter electric Proportion valve, to control the heating system of glass tempering furnace.
Summary of the invention
The invention provides a kind of device for glass tempering furnace remote monitoring, carry out remote monitoring based on ZigBee wireless sensor network and embedded web server.
A kind of device for glass tempering furnace remote monitoring, described glass tempering furnace comprises body of heater, with glass conveyer line and heating arrangement in body of heater, also be provided with for the air-blast device to body of heater delivery air, the described device for glass tempering furnace remote monitoring comprises field signal acquisition unit and embedded web server;
Described field signal acquisition unit comprises:
Temperature sensor, for gathering the temperature signal in body of heater;
Pressure transducer, for gathering the pressure signal in body of heater;
Micro controller module, for receiving and temperature signal and pressure signal described in pre-service, also for controlling the operation of heating arrangement and air-blast device according to the control signal from embedded web server;
First radio receiving transmitting module, for being sent to embedded web server through pretreated temperature signal and pressure signal;
Described embedded web server comprises:
Second radio receiving transmitting module, for intercoming mutually with the first radio receiving transmitting module;
Central processing module, shows, also for the signal from the second radio receiving transmitting module being converted to corresponding control signal and being sent to described micro controller module for the signal that receives from the second radio receiving transmitting module.
As preferably, be divided into some regions at described furnace interior along glass direction of transfer, in each region, be all furnished with two groups of temperature sensors, being distributed in above and below glass conveyer line of two groups of temperature sensor symmetries.
As preferably, all temperature sensors along the top of glass conveyer line in body of heater are uniformly distributed in same level, and at least arrange one in every square metre.
As preferably, when described micro controller module carries out pre-service for temperature signal, comprising:
For any one temperature sensor, the some temperature signal points of the collection at interval in the given time;
All temperature signal points are utilized to the threshold value suppressing exception point of setting;
Send to embedded web server as a temperature signal after remaining temperature signal point is averaged.
More preferably, the described schedule time is 100ms ~ 1000ms.
More preferably, collection 5 ~ 20 temperature signal points at interval in predetermined interval.
As preferably, after described central processing module receives the temperature signal from the second radio receiving transmitting module, the region residing in body of heater according to the temperature sensor corresponding to each temperature signal and the position relative to glass conveyer line, all temperature signals are classified, and for the zones of different of body of heater, sorted temperature signal is shown.
More preferably, inhomogeneous temperature signal shows within the different time, or utilizes different display devices to show, or utilizes the zones of different of same display device to show.
Compared with prior art, beneficial effect of the present invention:
The supervising device of glass tempering furnace of the present invention is optimized design through advanced system-level Optimization Theory, use SOC, Radio Transmission Technology realizes miniaturization data acquisition and transmission unit, by external sensor module, ZBTSRAM storer, FLASH memory realizes the seamless process of glass tempering furnace status data stream, the monitoring function of B/S structure is realized by embedded web server, module volume is little, speed is fast, low in energy consumption, the present invention may be used on the glass post-processing fields such as glass tempering furnace, other industrial monitoring field can be expanded to easily simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention for the long-distance monitorng device part of glass tempering furnace.
Fig. 2 is the system components workflow diagrams such as embedded web server, CGI function script, distance host end web browser.
Fig. 3 is the inner structure schematic diagram of ZBTSRAM controller.
Embodiment
A kind of device for glass tempering furnace remote monitoring, glass tempering furnace comprises body of heater, with glass conveyer line and heating arrangement in body of heater, also be provided with for the air-blast device to body of heater delivery air, the schematic diagram of long-distance monitorng device as shown in Figure 1, comprise field signal acquisition unit 1, embedded web server 2 and storage unit 3, the wireless channel that field signal acquisition unit 1 is specified by IEEE802.15.4 standard with embedded web server 2 is connected, embedded web server 2 and storage unit 3 are connected with communication bus, the body of heater of glass tempering furnace is not shown, field signal acquisition unit 1 is for gathering temperature signal in body of heater and pressure signal.
Field signal acquisition unit 1 comprises sensor assembly, micro controller module, the first radio receiving transmitting module.
Sensor assembly is for gathering temperature signal in body of heater and pressure signal, in present embodiment, sensor assembly comprises and is arranged on temperature sensor in body of heater and pressure transducer, furnace interior is divided into some regions along glass direction of transfer, two groups of temperature sensors are all furnished with in each region, two groups of temperature sensor symmetries be distributed in above and below glass conveyer line, the all temperature sensors being in the top of glass conveyer line in body of heater are uniformly distributed in same level, and at least arrange one in every square metre.
Temperature sensor comprises some K type thermocouple sensors and expansion interface, and K type thermopair, as a kind of temperature sensor, directly can to measure in various production the surface temperature from 0 DEG C to the liquid vapour of 1300 DEG C of scopes and gas medium and solid.K type thermopair is made up of critical pieces such as temperature-sensing element, fixing device for installing and terminal boxes usually.It is good that K type thermopair has the linearity, and thermopower is comparatively large, highly sensitive, and better, antioxygenic property is strong, the advantages such as low price for stability and homogeneity, can be used in oxidisability inert atmosphere extensively by user is adopted.
In this example, the K type thermocouple wire diameter of use is 1.2 ~ 4.0mm.The nominal chemical composition of positive pole (KP) is: Ni:Cr=92:12, and the nominal chemical composition of negative pole (KN) is: Ni:Si=99:3, and its serviceability temperature is-200 ~ 1300 DEG C, is extremely suitable for the in-furnace temperature information gathering glass tempering furnace.
Micro controller module, micro controller module intercoms mutually with sensor assembly and the first radio receiving transmitting module respectively, micro controller module, for receiving and the temperature signal that sends of pre-processing sensor module and pressure signal, controls the operation of heating arrangement and air-blast device according to the control signal from embedded web server 2.
Micro controller module carries out pretreated process for temperature signal:
(1) for any one temperature sensor, the some temperature signal points of collection (can be generally 5 ~ 20) at interval within the schedule time (can be generally 100ms ~ 1000ms);
(2) all temperature signal points are utilized to the threshold value suppressing exception point of setting;
(3) sent to embedded web server 2 by the first radio receiving transmitting module as a temperature signal after remaining temperature signal point being averaged.
Also comprise the first flash storage in an external signal gathering unit at the scene 1, this first flash storage is used for depositing sensing data, field signal acquisition unit 1 also comprises a Flash controller intercomed mutually with micro controller module, and a Flash controller is for controlling the first flash storage.
Embedded web server 2 comprises central processing module, multiple second radio receiving transmitting module, an industrial field bus module, serial bus module, network interface and a LCD display, network interface is used for embedded web server and is connected to Internet by 100M network interface, to realize user by Web browser remote supervisory and control(ling) equipment; LCD display, as the optional module of embedded web server, shows body of heater monitoring state information in real time for the working site at glass tempering furnace.PC is communicated with central processing module by serial bus module, and PC uses when tests such as embedded web server debugging, is realized the functions such as the program debug download of PC main frame and target (embedded web server) by serial ports/network interface.
Central processing module adopts ARM central processing unit, and the second radio receiving transmitting module is used for intercoming mutually with the first radio receiving transmitting module, sends information to ARM central processing unit by industrial field bus module simultaneously.
Embedded web server 2 adopts B/S(Browser/Server) structure, this structure is realized by the Core Feature part of system being focused on server, simplify the exploitation of system, maintenance and use, user side, without the need to installing any client software, only need have a common Web browser and namely access embedded web server by Internet.
An external storage unit 3 on embedded web server 2, storage unit 3 comprises ZBTSRAM storer and the second flash storage, also comprises a ZBTSRAM controller and a 2nd Flash controller.Native system adopts the second external FLASH memory to deposit sensor collection and annealing furnace monitor message by being wirelessly transmitted to embedded web server, and the second FLASH controller provides the interface with the second FLASH memory.
The storage unit of glass tempering furnace supervising device adopts ZBT(zerobusturn-around) SRAM memory, and by effective utilization system bus, carry out random read-write, avoid the change-over period between read-write state, eliminate read-write to postpone, actual data transfer rate is significantly improved.The design of ZBTSRAM controller is the key component in system, and its performance directly has influence on the performance of whole system.Brand-new intelligent ZBTSRAM series memory, capacity is large, can according to the requirement dynamic conditioning output state of custom system, and it, by eliminating periods of inactivity, improves system bandwidth, reduces communication system to the requirement of system timing simultaneously.
ZBTSRAM controller solves the problem of the bus contention in the ARM central processing unit of ZBTSRAM and system, FLASH memory data communication.ZBTSRAM controller forms primarily of 5 modules, and as shown in Figure 3, respectively, interface circuit transport layer, streamline delays time to control module, address control output module, clock output control module, data memory channels.Interface circuit transport layer stores the input of user, and outputs signal; Streamline delays time to control module provides applicable delay time according to the mode of operation of ZBTSRAM storer for exporting data; Address controls output module and is used for storing address and control signal; Data memory channels is used for providing double-direction control to the storage of data.
The interface signal of ZBTSRAM is primarily of compositions such as clock signal, control bus, address bus and data buss.Wherein, clock signal clk_zbt operates in interior various operations provide drive singal for ZBTSRAM realizes comprising reading and writing.Control bus forms primarily of three kinds of signals, and we_n is that read-write controls, we_n=1 allows read operation, we_n=0 allows write operation.Bw_n is sync byte write enable signal, and each byte has oneself effectively writes enable low level.Ld_n is address control signal, and during ld_n=0, the register of inside loads new address, if at the rising edge ld_n=1 of clock, internal address counter increases.Address bus addr is for providing memory address address signal to ZBTSRAM read-write operation memory cell, and its figure place is determined by the memory capacity of ZBTSRAM; Data bus dq is that ZBTSRAM carries out the passage of exchanges data when read-write operation with outside.
Driver and wireless communication protocol stack is inserted at the scene in signal gathering unit; Embedded OS, drive system and man-machine interface is inserted in embedded web server.
The system components workflow diagram such as embedded web server, CGI function script and distance host end web browser of the present invention's design as shown in Figure 2,
A. client (PC) logs in embedded web server by Web browser.
B. the CGI of embedded web server reads html web page to its buffer memory.
C.CGI sends the Web browser of webpage to client.
D.CGI is from the Shell of Linux, embedded data or read parameter driving.
E.CGI issues the Web browser of client after carrying out data conversion to the parameter read.
F. in client, the shell script (JavaScript, Python etc.) be embedded in webpage reads parameter and to the variable assignments of correspondence position on webpage, such webpage, by the position display parameter in regulation, ensure that the consistance of web displaying.
G. client sends new parameter to CGI by HTML list.
H.CGI receiving parameter invokes application, the parameter that application program obtains transfers to embedded OS by CGI scripting by the system function of embedded Linux system.
The parameter call driver that i, application program CGI transmit is the final device such as heating, air blast controlling annealing furnace also.
The workflow of remote monitoring is as follows:
(1), information acquisition, field signal acquisition unit 1 gathers the work state information such as switching value, analog quantity of glass tempering furnace by sensor assembly, and after described status information being carried out pre-service by micro controller module, stored in the first FLASH memory, transfer data to embedded web server 2 finally by the first radio receiving transmitting module.
(2), data receiver, the second radio receiving transmitting module of embedded web server 2 receives the data that field signal acquisition unit 1 transmits, and transfers data to ARM central processing unit by industrial field bus module.
(3), data processing, ARM central processing unit processes further to data, finally stored in the second flash storage.
(4), B/S structure, embedded web server 2 is by the same Internet connection of network interface, and user logs in embedded web server by browser, after by user right certification, logs in monitoring interface.
(5), except the mode in above-mentioned (4), LCD display shows the status information of glass tempering furnace in real time in performance graph mode.
(6), historical information inquiry, except display real time status information, this supervising device additionally provides the inquiry of historical data, and this function all can perform in the LCD display of browser end and embedded web server.
(7), network self-healing, by optimize wireless communication protocol stack, field signal acquisition unit achieves the fault detect of network node and automatically replies function.
Main application of the present invention comprises: the glass post-processing field devices condition monitorings such as glass tempering furnace, and can easily expanded application in other industrial monitoring field.
Claims (6)
1. the device for glass tempering furnace remote monitoring, described glass tempering furnace comprises body of heater, with glass conveyer line and heating arrangement in body of heater, also be provided with for the air-blast device to body of heater delivery air, it is characterized in that, the described device for glass tempering furnace remote monitoring comprises field signal acquisition unit and embedded web server;
Described field signal acquisition unit comprises:
Temperature sensor, for gathering the temperature signal in body of heater;
Pressure transducer, for gathering the pressure signal in body of heater;
Micro controller module, for receiving and temperature signal and pressure signal described in pre-service, also for controlling the operation of heating arrangement and air-blast device according to the control signal from embedded web server;
First radio receiving transmitting module, for being sent to embedded web server through pretreated temperature signal and pressure signal;
Described embedded web server comprises:
Second radio receiving transmitting module, for intercoming mutually with the first radio receiving transmitting module;
Central processing module, shows, also for the signal from the second radio receiving transmitting module being converted to corresponding control signal and being sent to described micro controller module for the signal that receives from the second radio receiving transmitting module;
Some regions are divided into along glass direction of transfer at described furnace interior, two groups of temperature sensors are all furnished with in each region, two groups of temperature sensor symmetries be distributed in above and below glass conveyer line, all temperature sensors along the top of glass conveyer line in body of heater are uniformly distributed in same level, and at least arrange one in every square metre; Described temperature sensor is K type thermocouple sensor, its K type thermocouple wire diameter is 1.2 ~ 4.0mm, the nominal chemical composition of positive pole is: Ni:Cr=92:12, and the nominal chemical composition of negative pole is: Ni:Si=99:3, and its serviceability temperature is-200 ~ 1300 DEG C.
2. the device for glass tempering furnace remote monitoring according to claim 1, is characterized in that, when described micro controller module carries out pre-service for temperature signal, comprising:
For any one temperature sensor, the some temperature signal points of the collection at interval in the given time;
All temperature signal points are utilized to the threshold value suppressing exception point of setting;
Send to embedded web server as a temperature signal after remaining temperature signal point is averaged.
3. the device for glass tempering furnace remote monitoring according to claim 2, is characterized in that, the described schedule time is 100ms ~ 1000ms.
4. the device for glass tempering furnace remote monitoring according to claim 2, is characterized in that, collection 5 ~ 20 temperature signal points at interval in predetermined interval.
5. the device for glass tempering furnace remote monitoring according to claim 1, it is characterized in that, after described central processing module receives the temperature signal from the second radio receiving transmitting module, the region residing in body of heater according to the temperature sensor corresponding to each temperature signal and the position relative to glass conveyer line, all temperature signals are classified, and for the zones of different of body of heater, sorted temperature signal is shown.
6. the device for glass tempering furnace remote monitoring according to claim 5, it is characterized in that, inhomogeneous temperature signal shows within the different time, or utilizes different display devices to show, or utilizes the zones of different of same display device to show.
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| CN104460783A (en) * | 2013-09-24 | 2015-03-25 | 汪保来 | Control system |
| CN105084729B (en) * | 2014-05-12 | 2017-05-10 | 浙江理工大学 | Technological parameter setting method of glass toughening technology |
| CN105084731A (en) * | 2014-05-15 | 2015-11-25 | 洛阳兰迪玻璃机器股份有限公司 | Tempering cooling system of tempered glass |
| CN105084732A (en) * | 2014-05-15 | 2015-11-25 | 洛阳兰迪玻璃机器股份有限公司 | Tempering cooling system of tempered glass |
| CN108900592A (en) * | 2018-06-21 | 2018-11-27 | 苏州宏久航空防热材料科技有限公司 | A kind of flame glass fibre production Internet of things system |
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| CN202470022U (en) * | 2011-12-30 | 2012-10-03 | 南京市锅炉压力容器检验研究院 | Remote online monitoring device for industrial coal boiler |
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| CN202470022U (en) * | 2011-12-30 | 2012-10-03 | 南京市锅炉压力容器检验研究院 | Remote online monitoring device for industrial coal boiler |
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