CN100342408C - On-line, wireless and continuous monitoring system for high-voltage charged body temperature - Google Patents
On-line, wireless and continuous monitoring system for high-voltage charged body temperature Download PDFInfo
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- CN100342408C CN100342408C CNB2005100478989A CN200510047898A CN100342408C CN 100342408 C CN100342408 C CN 100342408C CN B2005100478989 A CNB2005100478989 A CN B2005100478989A CN 200510047898 A CN200510047898 A CN 200510047898A CN 100342408 C CN100342408 C CN 100342408C
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Abstract
The present invention relates to a high-voltage charged body on-line and wireless temperature continuous monitoring system which measures the temperature by using a wireless data transmission technology and a single chip computer technology. The system is composed of a wireless digital temperature sensor, a wireless digital temperature collector, a wireless digital temperature controller, a wireless digital display, an upper position device and managing software. All the wireless digital sensors are positioned on a hot point to be measured, and a wireless signal is emitted outwards through a wireless receiving and sending module. Through the wireless digital temperature sampler and a wireless data controller, the wireless data are collected, encoded and tidies, then are transferred to the wireless digital display by using an RS485 bus and is dynamically displayed in real time. The upper position machine is connected with the display, and dynamic display is carried out by using a cartoon form. The present invention has the advantages of low energy consumption, accurate data, safety, electromagnetic interference resistance, moisture resistance, corrosion resistance, small volume, light weight, etc.
Description
Technical field
The present invention relates to anti-high-voltage alternating magnetic interference, the Chinese People's Anti-Japanese Military and Political College puts six magnetic field mutation disturbance and utilizes the intelligent temperature digital sensor, adopts wireless data transmission technology, and singlechip technology carries out thermometric on-line, wireless and continuous monitoring system for high-voltage charged body temperature.
Background technology
At present, it is perfect that constantly development is built and transformed to power industry, power supply and electricity consumption enterprise automation, in order to raise labour productivity, increase economic benefit, monitoring, alarming to high temperature is very important, in some special occasions, temperature is too high may to cause burning, blast or device damage and quality accident.For example: high voltage electric equipment, because the fault test means are limited, the more difficult discovery of temperature over-range point in switch box and enclosed busbar especially.As time goes on the temperature over-range place will be because of the heating accelerated oxidation, and then causes the major accident of burning bus or contact.
Fire alarm relates to many aspects of national economy and social life, is the important means of avoiding or reduce life and property loss to the timely warning of fire.
Thermometric mode to the high-voltage charged body employing in the now domestic and even international scope mainly contains following two kinds of methods: laser, infrared ray, this dual mode exists some unavoidable in essence defectives for the thermometric of high-voltage charged body: laser mode, use light transmitting fiber, also to use cable link in the high-voltage charged body, it very easily is subjected to the influence of dust, high-tension apparatus long-term vibration, but, on high-tension apparatus, do not recommend to use connecting line, because it very likely is the unfavorable factor that causes high-voltage charged body to meet accident; Infrared mode, its degree of accuracy is taken measurement of an angle, and the influence of barrier and surrounding enviroment is very big.
Summary of the invention
The purpose of this invention is to provide a kind of on-line, wireless and continuous monitoring system for high-voltage charged body temperature, this system adopts wireless digital temperature sensor, its wireless digital temperature signal is sent in different frequency ranges by radio receiving transmitting module, gather by the data acquisition device again, its advantage is not wiring, wireless digital signal is strong, and transmitting range is far away, and is anti-interference strong.
On-line, wireless and continuous monitoring system for high-voltage charged body temperature is characterized in that this system is made up of wireless digital temperature sensor, wireless digital Temperature sampler, wireless digital temperature controller, wireless digital display, host computer and management software.
Wireless digital temperature sensor is connected with on-the-spot heat generating spot, is the control core with the single-chip microcomputer, is made of temperature sensor head, single-chip microcomputer, eeprom memory, wireless digital transceiver module; Draw on the respective foot of single-chip microcomputer, be connected with storer with the temperature sensor head respectively, the input of single-chip microcomputer, output pin are connected with output, the input pin of wireless data transceiver module respectively, and its frequency control terminal links to each other with wire jumper, and Voltage stabilizing module is connected on the respective foot of single-chip microcomputer.
The wireless digital Temperature sampler is the control core with the single-chip microcomputer, connects the wireless digital transceiver module by single-chip microcomputer and constitutes, and is provided with the channel of optional 32 groups of different frequencies on single-chip microcomputer; Wireless digital transceiver module frequency in wireless digital transceiver module and the wireless digital temperature sensor is complementary.
The wireless digital temperature controller is the control core with the single-chip microcomputer, is made up of two single-chip microcomputers, toggle switch and watchdog circuits, and two single-chip microcomputers receive single-chip microcomputer and connect toggle switch by parallel port communication, and each single-chip microcomputer is provided with watchdog circuit.
The wireless digital temperature indicator is to be the control core with the single-chip microcomputer, form by two single-chip microcomputers, toggle switch, latch, code translator, hex inverter, charactron chip for driving, the digital display tube of common cathode, each single-chip microcomputer is provided with watchdog circuit, the input single-chip microcomputer links to each other with the display part, the digital display tube of latch, code translator, hex inverter, charactron chip for driving and common cathode links to each other with the corresponding pin of input single-chip microcomputer, the output single-chip microcomputer links to each other with toggle switch, two single-chip microcomputers are by parallel port communication, and alarm buzzer links to each other with input single-chip microcomputer respective foot.
Watchdog routine is mainly with routine inspection mode monitoring wireless temperature data: the program power-up initializing, and to being set, data carry out verification and loading, and errors excepted maybe can't provide miscue, and quit a program by verification; Just the pattern of patrolling and examining is carried out in all normal back of dress data.
The present invention's beneficial effect compared with prior art is: the intelligent temperature digital sensor of use and wireless data transfer module can not use extra connection cable fully on high-voltage charged body, avoided the high-voltage charged body electromagnetic interference (EMI), simultaneously can comprehensively carry out temperature survey again to high-voltage charged body, its wireless data transfer module can avoid infrared ray can only survey the shortcoming of straight line with the wireless data extreme spread in the 300M solid space fully.The present invention is installed in each high pressure point for measuring temperature with temperature sensor, by wireless transmit and receive mode, the measured point temperature is gathered storage, makes things convenient for the user to carry out real time temperature monitoring and the inquiry of historical data.This method have low energy consumption, data accurately, safety, anti-electromagnetic interference (EMI), moisture resistance is wet, anticorrosive, volume is little, advantage such as in light weight.Adopt external advanced person's digital temperature sensor, removed the A/D conversion from.R﹠D cycle is short, and expense is relatively inexpensive, the measurement range of the alarm temperature that can be provided with-55 ℃-+125 ℃.
Description of drawings
Fig. 1 is the on-line, wireless and continuous monitoring system for high-voltage charged body temperature structural representation
Fig. 2 is the principle assumption diagram of wireless digital temperature sensor
Fig. 3 is the principle assumption diagram of wireless digital Temperature sampler
Fig. 4 is the principle assumption diagram of wireless temperature recording controller
Fig. 5 is the principle assumption diagram of wireless digital temperature indicator
Fig. 6 is an on-line, wireless and continuous monitoring system for high-voltage charged body temperature host computer supervisory routine block diagram
Embodiment
See Fig. 1, on-line, wireless and continuous monitoring system for high-voltage charged body temperature, this system is made up of wireless digital temperature sensor, wireless digital Temperature sampler, wireless temperature recording controller, wireless digital temperature indicator, host computer and management software; All wireless digital sensors 1 place on the heat generating spot 6 to be measured in Fig. 1, and wireless signal is outwards launched by radio receiving transmitting module.Wireless digital Temperature sampler 2 and wireless data controller 3 utilize the RS485 bus to be sent to wireless digital display 4, Real time dynamic display after the data acquisition coding is put in order.Host computer 5 is connected with display 4, utilizes animated dynamically to show.
See Fig. 2, wireless digital temperature sensor is connected with on-the-spot heat generating spot, constitute Philips LPC900 single-chip microcomputer reading temperature sensor measured temperature data and being stored among the inner ROM by single-chip microcomputer U1, storer U2, wireless digital transceiver module U3, temperature sensor module U4, Voltage stabilizing module U5; When MCU was idle, single-chip microcomputer was in the low consumption state, and current drain seldom only is 50 μ A, and the electric current maximum consumption is 130-150mA when single-chip microcomputer is in emission; When carrying out the multipoint wireless communication, adopt storer EEPROM (U2) in order to distinguish each difference, distinguish each storer, when powering on, reads single-chip microcomputer U1 this storer numbering and other setting constant; Wireless digital transceiver module U3 is a multichannel, multiband is adjustable, all data, and U3 sends through the wireless digital transceiver module; Its external packing designs for fire protection flame retarding.
U1 is a Philips P89LPC900 series low-power scm among the figure, and U2 is an EEPROM AT24WC series, and U3 is a wireless data transfer module, and U4 is an intelligent temperature digital sensor DS series, and U5 is the LM336 Voltage stabilizing module, constitutes the voltage module of testing oneself, and D1 is a wire jumper.
As Fig. 2, below each several part is described in detail as follows:
Single-chip microcomputer U1: be Philips P89LPC900 series low-power scm, it is operated in dormant state, and current drain only is 50 μ A seldom, uses inner house dog to automatically reset; Draw on the P0.0, U4 links to each other with the temperature digital sensor, the digital temperature of reading temperature sensor; By external memory storage U2 configuration parameter, it is connected on the pin of SCL, SDA and draws when powering on; Its input, output pin link to each other with output, the input pin of radio receiving transmitting module, and P0.2 links to each other with wireless data transfer module U3; P0.4 links to each other with Voltage stabilizing module U5, is connected to AD conversion mouthful ADO;
Temperature digital sensor U4: be DS series, use the unibus mode to carry out work;
Storer U2: be AT24WC series, its 1,000,000 times are erasable, low-power consumption COMS product, and address selection line A0, A1, A2 are shorted to ground;
Wireless digital transceiver module U3: adopt AVR single chip computer AT MEGA8L, the low-power consumption product of dormancy electric current＜20uA, the radio transmitting and receiving chip of this module is CC1000, by the adjustable operating frequency range of software is 300～1000MHz, select wire jumper D1 to be and the ground short circuit by frequency, still link VCC, determine frequency range.
See Fig. 3, the wireless digital Temperature sampler connects the wireless digital transceiver module by single-chip microcomputer and constitutes, and is provided with the channel of optional 32 groups of different frequencies on single-chip microcomputer; The wireless digital transport module of the wireless digital temperature sensor of employing same frequency and the wireless digital transport module in the wireless digital temperature sensor are complementary; Bus output: have interfaces such as RS485, RS232, UART optional arbitrarily;
U6 is a wireless data acquisition module among the figure, and U7 is the MAX485 chip, and L1 is a tri coloured lantern, and JP1, JP2 are wire jumper, and D2 is the interface end daughter board.
As Fig. 3: U6 is wireless data acquisition module, connects the wireless digital transceiver module by single-chip microcomputer and constitutes, and its P6, P7 have RS485 bus output function, directly output, its P3, P4 have the UART output function, link to each other with A, the B pin of MAX485 chip U7, MAX485 chip U7 is connected into output mode;
Wireless digital transceiver module among Fig. 2, Fig. 3 has following characteristics:
● high anti-jamming capacity and low error rate; Using the modulation system of FSK to adopt efficient forward error correction channel technology to improve the ability of anti-bursty interference of data and random disturbance, is 10 at channel bit error rate
-2The time, can the actual bit error rate richly endowed by nature be: 10
-5～10
-6
● two-stage narrow band frequency/wave filter, the two-stage broadband filter, the harmonic interference of shaking is very competent.
● multichannel; Integral multiple with 8 makes up, and single system can high 1024 monitoring points, can satisfy the multiple combinations of communication mode of user.
● multiple interfaces can adapt to different interference environments and unlike signal transmission mode
● big data transmission and big data buffer; Interface baud rate 1200/4800/9600/19200/38400bps wherein sets arbitrarily, and data layout can be 8n1 according to what test environment was established, and 8e1 simultaneously, can transmit the Frame of endless.
See Fig. 4, the wireless digital temperature controller is to be that the control core is carried out data preparation coding, identification and classification, storage combination, regularly transmitted, replys communication with the single-chip microcomputer.Can carry out data with the wireless temperature digital indicator with upper management PC respectively by identical communication port and exchange, finish demonstration, warning, information uploading, network communication, resource sharing.
U8, U9 are the MAX813L watchdog circuit, and U10, U11 are the AT89C51 single-chip microcomputer, and U12, U13 are conversion chip MAX485, and SW1 is a toggle switch, and J1～J6 is a signal lamp.
Among Fig. 4, by the next signal of collector collection, enter single-chip microcomputer U11 by conversion chip U12, handle and storage, single-chip microcomputer U10 and single-chip microcomputer U11 carrying out shake communication, the wireless digital temperature signal of S1 toggle switch difference different set is uploaded the wireless digital temperature signal of gathering and store among the figure by conversion chip U13.
The CPU part: single-chip microcomputer U10, U11 are AT89C51, two single-chip microcomputer P1 mouths are connected to parallel port communication, single-chip microcomputer U11 is responsible for receiving, single-chip microcomputer U11 links to each other with A, the B pin of conversion chip U12 by TXD, RXD, the P0 mouth of single-chip microcomputer U11 connects toggle switch S1, determine that by toggle switch S1 P0.0～P0.3 is connected to VCC or is connected to ground, the definite wireless digital sensor group alias that will gather, single-chip microcomputer U10 are responsible for uploading numeral, single-chip microcomputer U10 links to each other with A, the B pin of conversion chip U13 by TXD, RXD;
The house dog part: the outside hardware watchdog MAX813L that uses, reset pulse is connected with single-chip microcomputer RESET pin, feeds the dog pulse and links to each other with the P3.5 pin of single-chip microcomputer U10, U11.
See Fig. 5, the wireless digital temperature indicator is to be that the control core is carried out data acquisition with the single-chip microcomputer, is made up of single chip part, watchdog circuit part, charactron display driving part and the part of reporting to the police.Single-chip microcomputer is responsible for reception, display radio temperature data and overload alarm, with the host computer carrying out shake communication, drives the charactron displays temperature, and when temperature surpassed qualification, pilot lamp was bright and have warning and relay to export.
U14, U15 is input, and output single-chip microcomputer, select the general 51 type single-chip microcomputers of AT89C51 for use, M1, M4 is MAX485 low-power consumption 485 data converters, M2, M3 is the MAX813L watchdog circuit, U16 is latch 74HC373N, and U17 is 74LS273N, and U18 is driver Darlington transistor ULN2003, U19 is code translator 74LS138, U20 is hex inverter CD4069, Q1, Q2, Q3, Q4 is charactron driver CD4543, S1, S2 is common cathode charactron LG5022AH, Relay is relay DS2Y-S-DC5V, Alert is the HXD hummer, and SW2 is the SWDIP-5 toggle switch, and L1～L9 is an alarm lamp, LU1, LU2 are the house dog pilot lamp.
Among Fig. 5:
CPU part: U14, U15 are AT89C51, two single-chip microcomputer P1 mouths are connected to parallel port communication, single-chip microcomputer U15 is responsible for reception, display radio temperature data and overload alarm, single-chip microcomputer U14 is by TXD, RXD and host computer carrying out shake communication, the P0 mouth of single-chip microcomputer U14 connects toggle switch SW2, determine that by SW2 P0.0～P0.3 is connected to VCC or is connected to ground, determine the wireless digital sensor group alias that to gather; The P0 mouth of single-chip microcomputer U15 drives digital the demonstration, drives latch, drives code translator; When temperature surpassed qualification, the P0 mouth of single-chip microcomputer U15 drove 74LS273, ULN2003 and P3.4 pin, and pilot lamp is bright and have warning and relay to export.
The house dog part: the outside hardware watchdog MAX813L that uses, reset pulse is connected with single-chip microcomputer RESET pin, and feed the dog pulse and link to each other with the P3.5 pin, in the single-chip microcomputer normal condition, LU1, LU2 regularly glimmers;
The charactron display driving part: the P0.0 of single-chip microcomputer U15～P0.3 mouth is the display driver pin, adopt the CD4069 inverting input through code translator 74LS138 U19 output pin E0, E1, E2, E3 respectively with Q1, Q2, Q3, Q4 CD4543 drives pin Pin1 and links to each other, realize column selection, use latch 74LS373 U17 and 74LS273 latch U16 that P0.0～P0.3 signal of single-chip microcomputer U15 is delivered to Q1, Q2, Q3, Q4 CD4543 input pin P1, P2, P6, the P7 pin, output pin a, b, c, d, e, f, the a of g and seven segment digital tubes, b, c, e, d, f, g links to each other, and the common cathode of charactron passes through resistance eutral grounding;
The warning part: the P0 mouth of single-chip microcomputer U15 is sent the alarm lamp signal, have nine alarm lamps and a hummer composition, adopt chip for driving ULN2003, code translator U19 is 74LS138, use chip 74LS373 and 74LS273 to latch, eight alarm lamps link to each other with eight output terminals of ULN2003, and the 9th alarm lamp is the P3.4 pin of U15, this pin external buzzer audible alarm, relay output.
See Fig. 6, on-line, wireless and continuous monitoring system for high-voltage charged body temperature adopts the host computer management software, makes PC and microcontroller communication carry out data acquisition and processing (DAP).It adopts the VB/SQLSERVER/FLASH technology, program process animation display, deposit in real time, alarm when temperature data transfinites.
As shown in Figure 6, watchdog routine is mainly with routine inspection mode monitoring wireless temperature data: the program power-up initializing, and to being set, data carry out verification and loading, and errors excepted maybe can't provide miscue, and quit a program by verification; Just the pattern of patrolling and examining is carried out in all normal back of dress data:
● deal with data, read serial data, data model transforms, and prepares temperature displayed data and alert data;
● video data, video data are animation window, FLASH programming, displays temperature and alarm content;
● the data deposit deposits wireless data in database SQL SERVER;
The integrated circuit (IC) chip that this product is selected for use is general-purpose chip, but has added many Anti-Jamming Techniques, software trap technology in program, prevents program fleet.For wireless transport module is necessary, and the working method of wireless digital temperature sensor is necessary for the low-power consumption mode, and the parameter of other components and parts and selection are satisfied functions of use and got final product, and does not have to special procure and asks.
Claims (1)
1, on-line, wireless and continuous monitoring system for high-voltage charged body temperature is characterized in that this system is made up of wireless digital temperature sensor, wireless digital Temperature sampler, wireless digital temperature controller, wireless digital display, host computer and management software;
Wireless digital temperature sensor is connected with on-the-spot heat generating spot, is the control core with the single-chip microcomputer, is made of temperature sensor head, single-chip microcomputer, eeprom memory, wireless digital transceiver module; Draw on the respective foot of single-chip microcomputer, be connected with storer with the temperature sensor head respectively, the input of single-chip microcomputer, output pin are connected with output, the input pin of wireless data transceiver module respectively, and its frequency control terminal links to each other with wire jumper, and Voltage stabilizing module is connected on the respective foot of single-chip microcomputer;
The wireless digital Temperature sampler is the control core with the single-chip microcomputer, connects the wireless digital transceiver module by single-chip microcomputer and constitutes, and is provided with the channel of optional 32 groups of different frequencies on single-chip microcomputer; Wireless digital transceiver module frequency in wireless digital transceiver module and the wireless digital temperature sensor is complementary;
The wireless digital temperature controller is the control core with the single-chip microcomputer, is made up of two single-chip microcomputers, toggle switch and watchdog circuits, and two single-chip microcomputers receive single-chip microcomputer and connect toggle switch by parallel port communication, and each single-chip microcomputer is provided with watchdog circuit;
The wireless digital temperature indicator is to be the control core with the single-chip microcomputer, form by two single-chip microcomputers, toggle switch, latch, code translator, hex inverter, charactron chip for driving, the digital display tube of common cathode, each single-chip microcomputer is provided with watchdog circuit, the input single-chip microcomputer links to each other with the display part, the digital display tube of latch, code translator, hex inverter, charactron chip for driving and common cathode links to each other with the corresponding pin of input single-chip microcomputer, the output single-chip microcomputer links to each other with toggle switch, two single-chip microcomputers are by parallel port communication, and alarm buzzer links to each other with input single-chip microcomputer respective foot;
Watchdog routine is mainly with routine inspection mode monitoring wireless temperature data: the program power-up initializing, and to being set, data carry out verification and loading, and errors excepted maybe can't provide miscue, and quit a program by verification; Just the pattern of patrolling and examining is carried out in all normal back of dress data.
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| CNB2005100478989A CN100342408C (en) | 2005-12-02 | 2005-12-02 | On-line, wireless and continuous monitoring system for high-voltage charged body temperature |
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| CN101452628B (en) * | 2007-12-04 | 2011-09-14 | 淄博智洋电气有限公司 | On-line monitoring system for temperature of contact line for electrified railway |
| CN101727732B (en) * | 2008-10-24 | 2011-07-27 | 淄博智洋电气有限公司 | High-voltage electrified body temperature monitoring system based on wireless transmission mode |
| CN101551277B (en) * | 2009-05-18 | 2011-10-19 | 胡业林 | Array type multipoint temperature monitoring system |
| CN101908264B (en) * | 2010-07-16 | 2012-06-27 | 天津市国土资源和房屋管理局 | Distributed serial type system for measuring formation temperature acquired by wireless digital mobile network transmission |
| CN101908263B (en) * | 2010-07-16 | 2012-07-04 | 天津市国土资源和房屋管理局 | Distributed tandem fine formation temperature measurement and wireless transmission collection system |
| CN101944266A (en) * | 2010-09-14 | 2011-01-12 | 深圳市华力特电气股份有限公司 | Method and system for monitoring electrical fire |
| CN102401697B (en) * | 2011-11-22 | 2013-06-05 | 鞍山银宇电子科技有限公司 | Infrared wireless data button |
| CN102768075B (en) * | 2012-07-10 | 2014-03-12 | 鞍山市融庭科技开发有限公司 | Temperature early-warning centralized display system |
| CN104089726A (en) * | 2014-06-27 | 2014-10-08 | 国家电网公司 | On-line temperature measurement system for power device ground voltage part |
| CN106153204A (en) * | 2015-04-26 | 2016-11-23 | 於晓明 | There is temperature measuring equipment and the method for wireless communication function |
| CN110646104A (en) * | 2019-09-16 | 2020-01-03 | 无锡江南计算技术研究所 | Direct-current power distribution cabinet temperature sensing system for supplying power to high-performance computer room |
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