CN202210001U - Wireless multi-path multi-monitoring-mode temperature measuring system - Google Patents
Wireless multi-path multi-monitoring-mode temperature measuring system Download PDFInfo
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- CN202210001U CN202210001U CN2011203384293U CN201120338429U CN202210001U CN 202210001 U CN202210001 U CN 202210001U CN 2011203384293 U CN2011203384293 U CN 2011203384293U CN 201120338429 U CN201120338429 U CN 201120338429U CN 202210001 U CN202210001 U CN 202210001U
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Abstract
Disclosed is a wireless multi-path multi-monitoring-mode temperature measuring system, characterized in that: a sensor set is connected with a simulation switch; a first microprocessor is respectively connected with a simulation switch and a first wireless transmit-receive module; a second wireless transmit-receive module is connected with a second microprocessor, with the second microprocessor being connected with a PC via RS-232; the second microprocessor is connected with the Internet via an Ethernet control module; the second microprocessor carries out remote data transmission with a handset via a GSM module; and the wireless temperature data transmission is carried out between the first wireless transmit-receive module and the second wireless transmit-receive module. Compared with the prior art, the wireless multi-path multi-monitoring-mode temperature measuring system of the utility model can carry out corresponding monitoring and the acquisition and transmission of the signal according to the sensitive analog quantity temperature. The wireless multi-path multi-monitoring-mode temperature measuring system can simultaneously carry out frequent sampling over multi-path temperature signals, and transmits the collected signals to a remote reception terminal via a wireless transmit-receive module. Meanwhile, the remote reception terminal has multiple data-transmitting and monitoring modes.
Description
Technical field
The utility model relates to the temperature monitoring field, exactly is meant a kind of many monitoring patterns of wireless multi-path temperature measurement system.
Background technology
At present, already used multichannel temperature measurement system exists following problems needs to solve:
1. Selection of Sensor problem.1., thermopair the sensor commonly used of temperature survey at present comprises following kind:.Thermopair adopts thermoelectric effect, has characteristics such as simple in structure, easy to make, that measurement range is wide, precision is high, thermal inertia is little.But its shortcoming is linear bad, and cold junction needs temperature compensation.2., thermal resistance, like copper resistance, nickel resistance, RTD etc.The characteristics of thermal resistance are good stabilities, high temperature resistant, reach six, 700 degree like what RTD had.But their shortcoming is when transmission line differs in length, and need carry out temperature compensation.3., thermistor, mainly be meant ceramic thermal sensing element.Essence is to utilize the positive temperature characteristics of semiconductor resistor, the thermal sensing element of processing with semiconductor ceramic material.Its major advantage is highly sensitive, and the shortcoming in past is that consistance is poor, because improvement prescription problem solves basically, resolution can reach in 0.1% ℃ now.4., transistor thermometric device.Semi-conductive temperature-coefficient of electrical resistance is than big 1～2 one magnitude of metal, and PN junction voltage, the electric capacity of diode and triode are very high to temperature control.The advantage of this that process thus type device is in-50 ℃～+ 150 ℃ scopes, good characteristic to be arranged, and volume is little, the response time is fast, price is low.But that its shortcoming is a consistance is poor, be difficult for accomplishing exchanging, and PN junction receives the influence of extraneous radiation easily, and stability is difficult to guarantee.5., utilize heat radiation principle.After its principle is the object thermal radiation, look the character of object itself, can it be absorbed, see through or reflection.And what of the radiation energy that heated object is emitted have certain relation with its temperature.6., utilize the measuring method of Principles of Acoustics.Acoustics temperature detection that developed recently gets up technology can be to the smoke temperature measurement value in the stove and the online detection of flame distribution, thereby judges the combustion position that stove is interior, carries out real-time regulated and control.Its ultimate principle is the measuring method of rebuilding temperature through the acoustic transit time between the measurement of sound sensor with the principle of least square.
Because be with the used temperature sensor of upper type analog, so be referred to as analog thermometric mode here.Analog thermometric mode must add analog to digital converter when carrying out data processing, in order to guarantee the degree of accuracy of temperature, the resolution of analog to digital converter must be enough high.And in general, the analog to digital converter cost of high resolving power and good reliability is very high, also can increase the printed circuit board difficulty of design, and possibly increase the processing burden of processor.These all can cause cost of investment to increase greatly, thereby cause now on the market the selling price of the multichannel temperature measurement appearance of main flow all than higher.
2. conventional multichannel temperature measurement system or multipath temperature patrol inspection system are owing to receive the restriction of digital to analog converter or central controller; The general number of active lanes that all is not easy to expand measurement, practical now many schemes are merely able at most accomplish that a station terminal equipment connects 16 the tunnel.
3. if select for use unibus DS18B20 to carry out temperature acquisition, want to do the temperature acquisition system of multichannel, must a plurality of DS18B20 be inserted unibus; During software design; Must use coupling ROM instruction, and will the sequence number of each DS18B20 be obtained, the sequence number that all must send into 64 to the thermometric each time of each DS18B20 matees; And, be connected in series 8 DS18B20 at most because microprocessor I/O mouth carrying load ability is limited.
4. the volume of general multichannel temperature measurement system is all bigger than normal, cannot make portable terminal device.
Since more than the problem mentioned, existing wireless multi-path temperature measurement system needs to improve.
The utility model content
To above-mentioned defective; The technical matters that the utility model solves is to provide a kind of many monitoring patterns of wireless multi-path temperature measurement system; Monitor collection and transmission with signal accordingly to the sensitive analog amount temperature; Can frequently sample to the temperature signal of multichannel simultaneously; And sending the signal of gathering to long-range receiving terminal through radio receiving transmitting module, long-range receiving terminal has several data transmission and monitoring pattern simultaneously: one, second microprocessor sends PC to through serial ports, by PC monitoring multi way temperature data; Two, second microprocessor is transferred to mobile phone through gsm module, by mobile phone the multi way temperature data is carried out remote monitoring in real time; Three, second microprocessor is transferred to the Internet net through ethernet control module, by the PC of Internet remote web the multi way temperature data is monitored in real time.
In order to solve above technical matters; Many monitoring patterns of wireless multi-path temperature measurement system that the utility model provides; Comprise measuring terminals and receiving terminal; Said measuring terminals comprises first power supply, first microprocessor, first radio receiving transmitting module, analog switch, sensor groups; Said sensor groups is connected with said analog switch, and said first microprocessor is connected with said first radio receiving transmitting module with said analog switch respectively, and said first power supply is said first microprocessor, first radio receiving transmitting module, analog switch and sensor groups power supply; Said receiving terminal comprises second source, second microprocessor, second radio receiving transmitting module, RS-232, PC, GSM communication module, ethernet control module; Said second radio receiving transmitting module is connected with second microprocessor; Second microprocessor is connected with PC through RS-232; Second microprocessor is connected with the Internet network through ethernet control module; Second microprocessor carries out remote data transmission through gsm module and mobile phone, and second source is second radio receiving transmitting module, second microprocessor, gsm module, ethernet control module, RS-232 power supply; Carry out the wireless temperature data transmission between first radio receiving transmitting module and second radio receiving transmitting module.
More excellent ground, said first microprocessor and said second microprocessor are single-chip microcomputer.
More excellent ground, said measuring terminals also comprises the display part, said display part is connected with said first microprocessor.
More excellent ground, said sensor groups comprises several AM2301 digital temperature sensors.
More excellent ground, said sensor groups comprises 8-16 AM2301 digital temperature sensor.
More excellent ground, said sensor groups comprises 16-32 AM2301 digital temperature sensor.
More excellent ground, said sensor groups comprises 32-64 AM2301 digital temperature sensor.
More excellent ground, said sensor groups comprises 64-128 AM2301 digital temperature sensor.
More excellent ground, said first radio receiving transmitting module adopts the nRF905 chip; Said second radio receiving transmitting module adopts the nRF905 chip.
More excellent ground, said first power supply and said second source are D.C. regulated power supply.
Many monitoring patterns of wireless multi-path temperature measurement system that the utility model provides; Comprise measuring terminals and receiving terminal; Said measuring terminals comprises first power supply, first microprocessor, first radio receiving transmitting module, analog switch, sensor groups; Said sensor groups is connected with said analog switch; Said first microprocessor is connected with said first radio receiving transmitting module with said analog switch respectively, and said first power supply is said first microprocessor, first radio receiving transmitting module, analog switch and sensor groups power supply; Said receiving terminal comprises second source, second microprocessor, second radio receiving transmitting module, RS-232, PC, GSM communication module, ethernet control module; Said second radio receiving transmitting module is connected with second microprocessor; Second microprocessor is connected with PC through RS-232; Second microprocessor is connected with the Internet network through ethernet control module; Second microprocessor carries out remote data transmission through gsm module and mobile phone, and second source is second radio receiving transmitting module, second microprocessor, gsm module, ethernet control module, RS-232 power supply; Carry out the wireless temperature data transmission between first radio receiving transmitting module and second radio receiving transmitting module.
Compared with prior art; Many monitoring patterns of wireless multi-path temperature measurement system that the utility model provides; Monitor collection and transmission with signal accordingly to the sensitive analog amount temperature; Can frequently sample to the temperature signal of multichannel simultaneously; And sending the signal of gathering to long-range receiving terminal through radio receiving transmitting module, long-range receiving terminal has several data transmission and monitoring pattern simultaneously: one, second microprocessor sends PC to through serial ports, by PC monitoring multi way temperature data; Two, second microprocessor is transferred to mobile phone through gsm module, by mobile phone the multi way temperature data is carried out remote monitoring in real time; Three, second microprocessor is transferred to the Internet net through ethernet control module, by the PC of Internet remote web the multi way temperature data is monitored in real time.
Description of drawings
Fig. 1 is the structured flowchart of many monitoring patterns of wireless multi-path temperature measurement system in the utility model;
Fig. 2 is the structured flowchart of measuring terminals in many monitoring patterns of wireless multi-path temperature measurement system in the utility model;
Fig. 3 is the structured flowchart of receiving terminal in many monitoring patterns of wireless multi-path temperature measurement system in the utility model.
Embodiment
For the technical scheme that those skilled in the art can understand the utility model better and provided, set forth below in conjunction with specific embodiment.
See also Fig. 1-Fig. 3, Fig. 1 is the structured flowchart of many monitoring patterns of wireless multi-path temperature measurement system in the utility model; Fig. 2 is the structured flowchart of measuring terminals in many monitoring patterns of wireless multi-path temperature measurement system in the utility model; Fig. 3 is the structured flowchart of receiving terminal in many monitoring patterns of wireless multi-path temperature measurement system in the utility model.
Many monitoring patterns of wireless multi-path temperature measurement system that the utility model provides; Comprise measuring terminals and receiving terminal; Said measuring terminals comprises first power supply, first microprocessor, first radio receiving transmitting module, analog switch, sensor groups; Said sensor groups is connected with said analog switch; Said first microprocessor is connected with said first radio receiving transmitting module with said analog switch respectively, and said first power supply is said first microprocessor, first radio receiving transmitting module, analog switch and sensor groups power supply; Said receiving terminal comprises second source, second microprocessor, second radio receiving transmitting module, RS-232, PC, GSM communication module, ethernet control module; Said second radio receiving transmitting module is connected with second microprocessor; Second microprocessor is connected with PC through RS-232; Second microprocessor is connected with the Internet network through ethernet control module; Second microprocessor carries out remote data transmission through gsm module and mobile phone, and second source is second radio receiving transmitting module and second microprocessor and gsm module, ethernet control module, RS-232 power supply; Carry out the wireless temperature data transmission between first radio receiving transmitting module and second radio receiving transmitting module.First radio receiving transmitting module and second radio receiving transmitting module adopt the nRF905 chip.
Compared with prior art, the concrete advantage of many monitoring patterns of wireless multi-path temperature measurement system of providing of the utility model is embodied in following several aspect:
1, Selection of Sensor.Sensor groups adopts the digital temperature sensor AM2301 of unibus, only needs a port pinout to carry out communication, thereby has practiced thrift the I/O mouth resource of single-chip microcomputer widely.Service area is+3.5V～+ 5.5V, for compatible with microprocessor, the power supply of employings+5V power supply, thus reduced the complicacy that electric power system designs.Thermometer resolution can be set to 16, can satisfy the accuracy requirement in most of place, and temperature measurement range is-40 ℃ to+120 ℃.Compare with conventional analogue formula temperature sensor, saved the necessary analog to digital conversion link of design, the loss time in the middle of having practiced thrift, have good sensitivity.This sensor has extra small volume, extremely low power consumption, and signal transmission distance can reach more than 20 meters, makes it become types of applications even the optimal selection of harsh application scenario the most.
2, multi pass acquisition part is utilized analog switch control, has fully saved the I/O mouth resource of single-chip microcomputer, and has simplified the wiring of pcb board, the realization multi channel testing of can programming greatly.With traditional multichannel temperature measurement contrast, need not write complicated program to each temperature sensor, also need not mate with the ROM of each 1-wire temperature sensor; Only need be in the time of temperature acquisition; Control is regularly carried out on each road of needs collection cut-off, can accomplish in the corresponding time period, each road temperature of correspondence is gathered; Whole gatherer process has gone the match time of ROM less, thereby has saved the time of temperature acquisition.This just is equivalent to only utilize a bus, carries out the expansion of theory unlimited system.If each bar bus connects one 16 analog switch, like CD74HC4067, each I/O mouth just can external No. 16 temperature sensors so.The number of active lanes of the temperature acquisition that extends out like this, part can reach tens the tunnel even road up to a hundred in practical application.
3, adopt the PTR8000 radio receiving transmitting module.PTR8000 is to be a radio receiving transmitting module of core with nRF905; WV is 1.9～3.6V, and power is very low, transmitter current 11mA; Received current 12.5mA; Standby current 2.5 μ A are operated in ISM (industry, science, the medical treatment) frequency range of 433/868/915MHz, are made up of the receiver of a fully-integrated frequency modulator, a band detuner, a power amplifier, a crystal oscillator and a regulator.Peak transfer rate can reach 100Kbit/s, can be easy to carry out programmed configurations through the SPI interface.PTR8000 adopts the ShockBurst technology transceive data of Nordic company.ShockBurst handles the high speed signal relevant with the RF agreement and is put in the chip, and chip can provide high-speed data transmission, and through a SPI interface control, traffic rate passes through program setting by microcontroller to transceiving chip by microcontroller.In sending mode, PTR8000 produces lead code and CRC check sign indicating number automatically, and the transmission of data ready DR signal notice microprocessor data is accomplished.In receiving mode, matching addresses AM and data ready DR signal notice effective address of microprocessor and packet finish receiving separately.Accomplish the setting of four kinds of mode of operations of PTR8000 by PWR, TRX_CE, three pins of TXEN: power down and SPI programming mode, standby and SPI programming mode, emission mode, receiving mode.The PTR8000 radio receiving transmitting module will receive and emission is integrated, and can directly get into the data I/O, and antijamming capability is strong.
4, receiving terminal mainly is to be made up of second microprocessor, level shifting circuit and 9 needle serial ports, GSM communication module, ethernet control module, and circuit structure is simple, is convenient to make portable set.
5, first and second microprocessors comprise single-chip microcomputer, comprise single-chip minimum system, reset to adopt resistance-capacitance type to discharge and recharge to reset, both can hand-reset, and also can power on automatically resets.The single-chip microcomputer that adopts is selected the enhancement mode single-chip microcomputer series of 51 kernels of self-contained storing devices for use, like STC89C52.Power supply employing+5V stabilized voltage supply power supply also can the balancing cell box, makes portable terminal.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation of spirit that does not break away from the utility model or scope in other embodiments among this paper.Therefore, the utility model will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (10)
1. many monitoring patterns of wireless multi-path temperature measurement system; It is characterized in that; Comprise measuring terminals and receiving terminal; Said measuring terminals comprises first power supply, first microprocessor, first radio receiving transmitting module, analog switch, sensor groups; Said sensor groups is connected with said analog switch, and said first microprocessor is connected with said first radio receiving transmitting module with said analog switch respectively, and said first power supply is said first microprocessor, first radio receiving transmitting module, analog switch and sensor groups power supply; Said receiving terminal comprises second source, second microprocessor, second radio receiving transmitting module, RS-232, PC, GSM communication module, ethernet control module; Said second radio receiving transmitting module is connected with second microprocessor; Second microprocessor is connected with PC through RS-232; Second microprocessor is connected with the Internet network through ethernet control module; Second microprocessor carries out remote data transmission through gsm module and mobile phone, and second source is second radio receiving transmitting module, second microprocessor, gsm module, ethernet control module, RS-232 power supply; Carry out the wireless temperature data transmission between first radio receiving transmitting module and second radio receiving transmitting module.
2. many monitoring patterns of wireless multi-path temperature measurement system according to claim 1 is characterized in that, said first microprocessor and said second microprocessor are single-chip microcomputer.
3. many monitoring patterns of wireless multi-path temperature measurement system according to claim 1 is characterized in that said measuring terminals also comprises the display part, and said display part is connected with said first microprocessor.
4. many monitoring patterns of wireless multi-path temperature measurement system according to claim 1 is characterized in that said sensor groups comprises several AM2301 digital temperature sensors.
5. many monitoring patterns of wireless multi-path temperature measurement system according to claim 4 is characterized in that said sensor groups comprises 8-16 AM2301 digital temperature sensor.
6. many monitoring patterns of wireless multi-path temperature measurement system according to claim 4 is characterized in that said sensor groups comprises 16-32 AM2301 digital temperature sensor.
7. many monitoring patterns of wireless multi-path temperature measurement system according to claim 4 is characterized in that said sensor groups comprises 32-64 AM2301 digital temperature sensor.
8. many monitoring patterns of wireless multi-path temperature measurement system according to claim 4 is characterized in that said sensor groups comprises 64-128 AM2301 digital temperature sensor.
9. many monitoring patterns of wireless multi-path temperature measurement system according to claim 1 is characterized in that, said first radio receiving transmitting module adopts the nRF905 chip; Said second radio receiving transmitting module adopts the nRF905 chip.
10. many monitoring patterns of wireless multi-path temperature measurement system according to claim 1 is characterized in that said first power supply and said second source are D.C. regulated power supply.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011203384293U CN202210001U (en) | 2011-09-09 | 2011-09-09 | Wireless multi-path multi-monitoring-mode temperature measuring system |
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| CN2011203384293U CN202210001U (en) | 2011-09-09 | 2011-09-09 | Wireless multi-path multi-monitoring-mode temperature measuring system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198063A (en) * | 2014-09-23 | 2014-12-10 | 成都众山科技有限公司 | Multipoint temperature telemetering system allowing convenient setting of monitoring points |
| CN106125700A (en) * | 2016-08-24 | 2016-11-16 | 北京航空航天大学 | Distributed super multichannel adds heat pipe monitoring system and control method thereof |
| CN110926645A (en) * | 2019-12-19 | 2020-03-27 | 深圳市中新力电子科技有限公司 | Big data monitoring multichannel temperature acquisition circuit |
-
2011
- 2011-09-09 CN CN2011203384293U patent/CN202210001U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198063A (en) * | 2014-09-23 | 2014-12-10 | 成都众山科技有限公司 | Multipoint temperature telemetering system allowing convenient setting of monitoring points |
| CN106125700A (en) * | 2016-08-24 | 2016-11-16 | 北京航空航天大学 | Distributed super multichannel adds heat pipe monitoring system and control method thereof |
| CN110926645A (en) * | 2019-12-19 | 2020-03-27 | 深圳市中新力电子科技有限公司 | Big data monitoring multichannel temperature acquisition circuit |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120502 Termination date: 20200909 |
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| CF01 | Termination of patent right due to non-payment of annual fee |