CN103246250A - Remote monitoring device for glass tempering furnace - Google Patents
Remote monitoring device for glass tempering furnace Download PDFInfo
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- CN103246250A CN103246250A CN2013100949479A CN201310094947A CN103246250A CN 103246250 A CN103246250 A CN 103246250A CN 2013100949479 A CN2013100949479 A CN 2013100949479A CN 201310094947 A CN201310094947 A CN 201310094947A CN 103246250 A CN103246250 A CN 103246250A
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Abstract
The invention discloses a remote monitoring device for a glass tempering furnace. The glass tempering furnace comprises a furnace body, wherein the furnace body is internally provided with a glass transmission line and a heating device as well as a blower device used for conveying airflow to the furnace body, and the remote monitoring device for the glass tempering furnace comprises a field signal acquisition unit and an embedded Web server; the field signal acquisition unit comprises a temperature sensor, a pressure sensor, a microcontroller module and a first wireless transceiver module; and the embedded Web server comprises a second wireless transceiver module and a central processing module. The remote monitoring device for the glass tempering furnace is small in size, high in speed and low in power consumption, is used for remotely controlling the glass tempering furnace, and can be extended and applied to other industry monitoring field.
Description
Technical field
The present invention relates to the glass tempering apparatus field, be specifically related to a kind of device for the glass tempering furnace remote monitoring, its remote monitoring is based on ZigBee wireless sensor network and embedded web server.
Background technology
Multidisciplinary height intersection, the integrated forward position research field of knowledge height have been related to as one, wireless sensor network has been subjected to the extensive concern of international community, be acknowledged as one of technology that will have an immense impact on to 21st century, it has boundless application prospect.
Wireless sensor network (WSN.Wireless Sensor Network) is the network of a kind of self-organization, multi-hop, no subregion, the support of foundation-free facility.Node cost wherein is low, volume is little, and the network node majority is fixed, requires the node can the continuous firing long period; On communication mode, adopt short-range low power wireless communication technology, for example can adopt ZigBee technology, bluetooth, Wi-Fi and technology such as infrared.
ZigBee is a kind of a kind of short-distance wireless communication technology of setting up on the basis of IEEE802.15.4 agreement.The ZigBee protocol stack has used Physical layer (PHY) and the media access control layer (MAC) of IEEE802.15.4 standard definition, and has defined network layer (NWK), application layer (APL) and safe floor on this basis.It has, and networking cost is low, complexity is low, low in energy consumption, characteristics such as data rate is low, short distance, and these technical characterstics make ZigBee become the preferably selection that makes up wireless sensor network.Just because of this, the ZigBee technology can be widely used in numerous areas such as Internet of Things, the automatic monitoring of industry.At present, the ZigBee technology has become low rate Wireless Personal Network (Low Rate Wireless Personal Area Network, one of research focus LR-WPAN).
Glass tempering furnace is the equipment that carries out glass production, for example, publication number is that the Chinese invention patent application of CN 102643016A discloses a kind of glass tempering furnace with Based Intelligent Control heating system, comprise by frame and electric control gear, be provided with the tempering burner hearth in the frame, be provided with the roller of carrying glass plate to use in the tempering burner hearth, many group heating wires are installed on the tempering burner hearth, on the described tempering burner hearth, lower end extend through that main tracheae is communicated with many groups is to flow tube, to having a plurality of convection tube nozzles on the flow tube, be connected with manual ball valve on the air intake opening of main tracheae, the air intake opening of manual ball valve is connected with electric Proportion valve by joint, electric Proportion valve is connected with the electric control gear electrical control, electric Proportion valve can be instructed according to the numerical control that electric control gear sends, correspondence enters flow and the time of the air of electric Proportion valve and regulates, this technology adopts the electrical equipment proportioning valve that links to each other with electric control gear that flow and the time of the air that enters electric Proportion valve are regulated, to control the heating system of glass tempering furnace.
Summary of the invention
The invention provides a kind of device for the glass tempering furnace remote monitoring, carry out remote monitoring based on ZigBee wireless sensor network and embedded web server.
A kind of device for the glass tempering furnace remote monitoring, described glass tempering furnace comprises body of heater, have glass conveyer line and heating arrangement in the body of heater, also be provided with for the air-blast device to the body of heater delivery air, described device for the glass tempering furnace remote monitoring comprises field signal acquisition unit and embedded web server;
Described field signal acquisition unit comprises:
Temperature sensor is used for gathering the temperature signal in the body of heater;
Pressure transducer is used for gathering the pressure signal in the body of heater;
Micro controller module is used for receiving and the described temperature signal of pre-service and pressure signal, also is used for foundation from the control signal control heating arrangement of embedded web server and the operation of air-blast device;
First radio receiving transmitting module is used for and will be sent to embedded web server through pretreated temperature signal and pressure signal;
Described embedded web server comprises:
Second radio receiving transmitting module is used for intercoming mutually with first radio receiving transmitting module;
Central processing module be used for to receive from the signal of second radio receiving transmitting module and shows, also is used for will being converted to corresponding control signal from the signal of second radio receiving transmitting module and being sent to described micro controller module.
As preferably, be divided into some zones in described body of heater inside along the glass direction of transfer, all be furnished with two groups of temperature sensors in each zone, the above and below that is distributed in the glass conveyer line of two groups of temperature sensor symmetries.
As preferably, evenly distribute in same surface level along all temperature sensors of the top of glass conveyer line in the body of heater, and arrange one in every square metre at least.
As preferably, when described micro controller module carries out pre-service at temperature signal, comprising:
For any one temperature sensor, some temperature signal points of Jian Ge collection in the given time;
All temperature signal points are utilized preset threshold suppressing exception point;
To remaining temperature signal point average the back send to embedded web server as a temperature signal.
More preferably, the described schedule time is 100ms～1000ms.
More preferably, 5～20 temperature signal points of collection at interval in predetermined interval.
As preferably, behind the temperature signal of described central processing module reception from second radio receiving transmitting module, according to the corresponding temperature sensor of each temperature signal residing zone and with respect to the position of glass conveyer line in body of heater, all temperature signals are classified, and at the zones of different of body of heater sorted temperature signal is shown.
More preferably, inhomogeneous temperature signal shows in 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 optimal design theory, use the SOC chip, Radio Transmission Technology realizes miniaturization data acquisition and transmission unit, by the external sensor module, ZBT SRAM storer, the FLASH storer is realized the seamless processing of glass tempering furnace status data stream, realize the monitoring function of B/S structure by embedded web server, the module volume is little, speed is fast, low in energy consumption, the present invention may be used on glass deep processing fields such as glass tempering furnace, can expand to other industrial monitoring field easily simultaneously.
Description of drawings
Fig. 1 is the structural representation that the present invention is used for the long-distance monitorng device part of glass tempering furnace.
Fig. 2 is system's each several part workflow diagrams such as embedded web server, CGI function script, distance host end WEB browser.
Fig. 3 is the inner structure synoptic diagram of ZBT SRAM controller.
Embodiment
A kind of device for the glass tempering furnace remote monitoring, glass tempering furnace comprises body of heater, have glass conveyer line and heating arrangement in the body of heater, also be provided with for the air-blast device to the body of heater delivery air, the synoptic 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, field signal acquisition unit 1 is connected with the wireless channel of embedded web server 2 by the IEEE802.15.4 standard code, embedded web server 2 and storage unit 3 are connected with communication bus, the body of heater of glass tempering furnace is not shown, and field signal acquisition unit 1 is used for gathering temperature signal and the pressure signal in the body of heater.
Field signal acquisition unit 1 comprises sensor assembly, micro controller module, first radio receiving transmitting module.
Sensor assembly is used for gathering temperature signal and the pressure signal of body of heater, in the present embodiment, sensor assembly comprises temperature sensor and the pressure transducer that is installed in the body of heater, body of heater inside is divided into some zones along the glass direction of transfer, all be furnished with two groups of temperature sensors in each zone, the above and below that is distributed in the glass conveyer line of two groups of temperature sensor symmetries, all temperature sensors that are in the top of glass conveyer line in the body of heater evenly distribute in same surface level, and arrange one in every square metre at least.
Temperature sensor comprises some K type thermocouple sensors and expansion interface, and K type thermopair is as a kind of temperature sensor, can directly measure the surface temperature of the liquid vapour from 0 ℃ to 1300 ℃ of scopes and gas medium and solid in the various productions.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 bigger, and is highly sensitive, and stability and homogeneity are better, and antioxygenic property is strong, and advantages such as low price can be used for the oxidisability inert atmosphere and extensively be adopted by the user.
In this example, the K type thermocouple wire diameter of use is 1.2～4.0mm.The nominal chemical constitution of anodal (KP) is: Ni:Cr=92:12, the nominal chemical constitution of negative pole (KN) is: Ni:Si=99:3, its serviceability temperature is-200～1300 ℃, very is suitable for gathering the interior temperature information of stove of glass tempering furnace.
Micro controller module, micro controller module intercoms mutually with sensor assembly and first radio receiving transmitting module respectively, micro controller module is for the temperature signal and the pressure signal that receive and the pre-service sensor assembly sends, according to the operation of controlling heating arrangement and air-blast device from the control signal of embedded web server 2.
Micro controller module carries out pretreated process at temperature signal:
(1) for any one temperature sensor, (generally can be at interval some temperature signal points of collection (generally can be 5～20) in the 100ms～1000ms) at the fixed time;
(2) all temperature signal points are utilized preset threshold suppressing exception point;
(3) the remaining temperature signal point back of averaging is sent to embedded web server 2 by first radio receiving transmitting module as a temperature signal.
Also comprise the Flash storer on the external signal gathering unit at the scene 1, the one Flash storer is used for depositing sensing data, field signal acquisition unit 1 also comprises a Flash controller that intercoms mutually with micro controller module, and a Flash controller is used for control the one Flash storer.
Embedded web server 2 comprises central processing module, a plurality of 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 the 100M network interface, to realize that the user is by the Web browser remote supervisory and control(ling) equipment; LCD display is used for showing body of heater monitoring state information in real time in the working site of glass tempering furnace as the optional module of embedded web server.PC is communicated by letter with central processing module by serial bus module, and PC uses when tests such as embedded web server debugging, realizes the functions such as program debug download of PC main frame and target (embedded web server) by serial ports/network interface.
Central processing module adopts the ARM central processing unit, and second radio receiving transmitting module is used for intercoming mutually with first radio receiving transmitting module, sends information to the ARM central processing unit by the industrial field bus module simultaneously.
Embedded web server 2 adopts B/S(Browser/Server) structure, this structure partly focuses on the server by the Core Feature with system and is realized, exploitation, maintenance and the use of system have been simplified, user side need not to install any client software, and only need have a common Web browser can visit embedded web server by Internet.
An external storage unit 3 on the embedded web server 2, storage unit 3 comprises ZBTSRAM storer and the 2nd Flash storer, also comprises a ZBT SRAM controller and the 2nd a Flash controller.Native system adopts the 2nd external FLASH storer to deposit the sensor collection and by being wirelessly transmitted to the annealing furnace monitor message of embedded web server, the 2nd FLASH controller provides the interface with the 2nd FLASH storer.
The storage unit of glass tempering furnace supervising device adopts ZBT(zero bus turn-around) the SRAM storer, and by efficiently utilizing system bus, carry out random read-write, avoided the change-over period between the read-write state, eliminated read-write and postponed, actual data transfer rate is significantly improved.The design of ZBTSRAM controller is the key component in the system, and its performance directly has influence on the performance of total system.Brand-new intelligent ZBT SRAM series memory, capacity is big, can dynamically adjust output state according to the requirement of custom system, and it has improved system bandwidth by eliminating periods of inactivity, reduces communication system simultaneously to the requirement of system timing.
The problem of the bus contention during ZBT SRAM controller solves ZBT SRAM and ARM central processing unit, the FLASH memory data of system are communicated by letter.ZBT SRAM controller mainly is made up of 5 modules, as shown in Figure 3, is interface circuit transport layer, streamline time-delay control module, address control output module, clock output control module, data memory channel respectively.Interface circuit transport layer storage user's input, and output signal; Streamline time-delay control module provides suitable delay time according to the mode of operation of ZBT SRAM storer for the output data; Address control output module is used for address and control signal are stored; The data memory channel is used for providing two-way control to the storage of data.
The interface signal of ZBT SRAM mainly is made up of clock signal, control bus, address bus and data bus etc.Wherein, clock signal clk_zbt realizes comprising that for ZBT SRAM reading and writing operate in interior various operations the driving signal is provided.Control bus mainly is made up of three kinds of signals, and we_n is that read-write control, we_n=1 allow read operation, we_n=0 to allow write operation.Bw_n is that sync byte is write enable signal, and each byte has oneself effectively to write to enable low level.Ld_n is address control signal, and the register of inside loads new address during ld_n=0, if in then internal address counting device increase of the rising edge ld_n=1 of clock.Address bus addr is for providing the memory address address signal to ZBT SRAM read-write operation memory cell, and its figure place is determined by the memory capacity of ZBT SRAM; Data bus dq is ZBT SRAM carries out exchanges data with the outside when read-write operation passage.
Insert driver and wireless communication protocol stack at the scene in the signal gathering unit; In embedded web server, insert embedded OS, drive system and man-machine interface.
System's each several part workflow diagrams such as embedded web server, CGI function script and distance host end WEB browser of the present invention design as shown in Figure 2,
A. client (PC) is by Web browser login embedded web server.
B. the CGI of embedded web server reads html web page to its buffer memory.
C.CGI sends webpage to the Web browser of client.
D.CGI reads parameter from Shell, embedded data or the driving of Linux.
After e.CGI carries out data-switching to the parameter that reads, issue the Web browser of client.
F. in client, be embedded in that shell script (JavaScript, Python etc.) in the webpage reads parameter and to the variable assignments of correspondence position on the webpage, webpage will guarantee the consistance of web displaying in the position display parameter of stipulating like this.
G. client sends new parameter to CGI by the HTML list.
H.CGI receives parameter and invokes application, and the parameter that application program is obtained is to transfer to embedded OS by the system function of CGI scripting by embedded Linux system.
Devices such as the parameter call driver that i, application program transmit with CGI and the heating of final control annealing furnace, air blast.
The workflow of remote monitoring is as follows:
(1), information acquisition, the work state informations such as switching value, analog quantity of glass tempering furnace are gathered in field signal acquisition unit 1 by sensor assembly, and after by micro controller module described status information being carried out pre-service, deposit a FLASH storer in, transfer data to embedded web server 2 by first radio receiving transmitting module at last.
(2), data receive, second radio receiving transmitting module of embedded web server 2 receives the data of field signal acquisition unit 1 transmission, and transfers data to the ARM central processing unit by the industrial field bus module.
(3), data handle, the ARM central processing unit is further handled data, deposits the 2nd Flash storer at last in.
(4), the B/S structure, embedded web server 2 connects with the Internet by network interface, the user lands embedded web server by browser, after by the user right authentication, lands monitoring interface.
(5), except the mode in above-mentioned (4), LCD display shows the status information of glass tempering furnace in real time in the performance graph mode.
(6), historical information inquiry, except showing real-time status information, this supervising device also provides the inquiry of historical data, this function all can be carried out in the LCD display of browser end and embedded web server.
(7), network self-healing, by the wireless communication protocol stack of optimizing, the field signal acquisition unit has been realized the fault detect of network node and has been automatically replied function.
Main application of the present invention comprises: glass deep processing field devices condition monitorings such as glass tempering furnace, and easily expanded application in other industrial monitoring field.
Claims (8)
1. device that is used for the glass tempering furnace remote monitoring, described glass tempering furnace comprises body of heater, have glass conveyer line and heating arrangement in the body of heater, also be provided with for the air-blast device to the body of heater delivery air, it is characterized in that described device for the glass tempering furnace remote monitoring comprises field signal acquisition unit and embedded web server;
Described field signal acquisition unit comprises:
Temperature sensor is used for gathering the temperature signal in the body of heater;
Pressure transducer is used for gathering the pressure signal in the body of heater;
Micro controller module is used for receiving and the described temperature signal of pre-service and pressure signal, also is used for foundation from the control signal control heating arrangement of embedded web server and the operation of air-blast device;
First radio receiving transmitting module is used for and will be sent to embedded web server through pretreated temperature signal and pressure signal;
Described embedded web server comprises:
Second radio receiving transmitting module is used for intercoming mutually with first radio receiving transmitting module;
Central processing module be used for to receive from the signal of second radio receiving transmitting module and shows, also is used for will being converted to corresponding control signal from the signal of second radio receiving transmitting module and being sent to described micro controller module.
2. the device for the glass tempering furnace remote monitoring according to claim 1, it is characterized in that, be divided into some zones in described body of heater inside along the glass direction of transfer, all be furnished with two groups of temperature sensors in each zone, the above and below that is distributed in the glass conveyer line of two groups of temperature sensor symmetries.
3. the device for the glass tempering furnace remote monitoring according to claim 2 is characterized in that, evenly distributes in same surface level along all temperature sensors of the top of glass conveyer line in the body of heater, and arranges one in every square metre at least.
4. the device for the glass tempering furnace remote monitoring according to claim 1 is characterized in that, when described micro controller module carries out pre-service at temperature signal, comprising:
For any one temperature sensor, some temperature signal points of Jian Ge collection in the given time;
All temperature signal points are utilized preset threshold suppressing exception point;
To remaining temperature signal point average the back send to embedded web server as a temperature signal.
5. the device for the glass tempering furnace remote monitoring according to claim 4 is characterized in that, the described schedule time is 100ms～1000ms.
6. the device for the glass tempering furnace remote monitoring according to claim 4 is characterized in that, 5～20 temperature signal points of collection at interval in predetermined interval.
7. the device for the glass tempering furnace remote monitoring according to claim 1, it is characterized in that, behind the temperature signal of described central processing module reception from second radio receiving transmitting module, according to the corresponding temperature sensor of each temperature signal residing zone and with respect to the position of glass conveyer line in body of heater, all temperature signals are classified, and at the zones of different of body of heater sorted temperature signal is shown.
8. the device for the glass tempering furnace remote monitoring according to claim 7, it is characterized in that, inhomogeneous temperature signal shows in 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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| CN201310094947.9A CN103246250B (en) | 2013-03-22 | 2013-03-22 | A kind of device for glass tempering furnace remote monitoring |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104460783A (en) * | 2013-09-24 | 2015-03-25 | 汪保来 | Control system |
| 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 |
| CN105084729A (en) * | 2014-05-12 | 2015-11-25 | 浙江理工大学 | Technological parameter setting method of glass toughening technology |
| 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 |
| CN111421312A (en) * | 2020-04-03 | 2020-07-17 | 中核核电运行管理有限公司 | Pneumatic screwing control system for thermocouple mechanical seal |
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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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| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104460783A (en) * | 2013-09-24 | 2015-03-25 | 汪保来 | Control system |
| CN105084729A (en) * | 2014-05-12 | 2015-11-25 | 浙江理工大学 | Technological parameter setting method of glass toughening technology |
| 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 |
| CN111421312A (en) * | 2020-04-03 | 2020-07-17 | 中核核电运行管理有限公司 | Pneumatic screwing control system for thermocouple mechanical seal |
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