CN101004853A - Remote temperature-sensing system - Google Patents
Remote temperature-sensing system Download PDFInfo
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- CN101004853A CN101004853A CN200610001052.6A CN200610001052A CN101004853A CN 101004853 A CN101004853 A CN 101004853A CN 200610001052 A CN200610001052 A CN 200610001052A CN 101004853 A CN101004853 A CN 101004853A
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Abstract
A sensing system of remote temperature comprises remote computer master control unit, network concentrator, controller and a numbers of temperature transducers. It is featured as enabling to use normal private computer erected with control software as said remote computer master control unit, connecting 1-50 controller with on network concentrator and using one controller to monitor 1-1024 temperature transducers for remote-detecting temperature of human or animal in epidemic area.
Description
Technical field
The present invention relates to a kind of remote sensing system, especially a kind of remote temperature-sensing system that can be used for the large tracts of land monitoring.
Background technology
No matter the measurement of temperature is in daily life or in commercial Application, the capital often is applied to, but existing temperature survey mode can not adapt to the needs of some special occasions, such as: to the measurement of some spreading venereal diseases human temperature, in-plant direct contact measurement just has certain infected danger; To the monitoring of some animal epidemics, in-plant direct contact measurement not only has infected danger to also have the possibility of being attacked by animal, even does not have the possibility of direct contact measurement sometimes at all; Also have some industrial hazard occasions, also can not artificial direct in-plant measurement or monitoring.
Summary of the invention
The objective of the invention is to overcome above-mentioned defective provides a kind of remote temperature-sensing system, and this system is the temperature regime of the controlled object of large-area remote monitoring by direct contact measurement not.
For achieving the above object, the present invention adopts following technical scheme:
A kind of remote temperature-sensing system is characterized in that, comprising: the remote computer main control unit, in order to receive and to send the signal of sensor; Hub is in order to connect main control computer and controller; Controller, in order to receive and transmission from the signal of temperature sensor; Some temperature sensors are in order to detecting temperature and send temperature signal to control module.
Above-mentioned remote temperature-sensing system is characterized in that, described remote computer main control unit is the Ethernet controllable.
Above-mentioned remote temperature-sensing system is characterized in that, described remote computer control module is the USB control module.
Above-mentioned remote temperature-sensing system is characterized in that, described sensor comprises hygrosensor, radio transmission system, battery, LED indicator, button.
Above-mentioned remote temperature-sensing system is characterized in that, described controller comprises the ac/dc adapter that backup battery can be provided, radio receiving system, LED indicator, two metal dish as code check, button.
Above-mentioned remote temperature-sensing system is characterized in that, described hub comprises the alterating and direct current source adapter, backup battery, LED indicator, RS232 cable.
Above-mentioned remote temperature-sensing system is characterized in that, described hub can connect 1～50 controller.
Above-mentioned remote temperature-sensing system is characterized in that, described each controller can be monitored 1～1024 sensor.
Above-mentioned remote temperature-sensing system, it is characterized in that, described sensor circuit comprises: little process chip, temperature measuring circuit, switch arrays, signal transmission circuit, signal receiving circuit, clock circuit, described temperature measuring circuit are to obtain temperature value by the NTC resistance value in the circuit; Described switch arrays are used to finish the setting to sensor ID.
Above-mentioned remote temperature-sensing system is characterized in that, described little process chip adopts the 87P08 chip.
The present invention compared with prior art has following advantage:
The temperature of the long-range large tracts of land monitoring of this remote temperature-sensing system energy testee, the temperature that is particularly useful for remote monitoring epidemic situation generating region animal or human body, monitoring epidemic situation promptly and accurately spreads and the control situation, simultaneously can dispose different sensors, also can be used for the monitoring of industrial hazard environment temperature.
Describe technical scheme of the present invention in detail below in conjunction with the drawings and specific embodiments:
Description of drawings
Fig. 1 is the system chart of the embodiment of the invention;
Fig. 2 is the circuit diagram of the embodiment of the invention;
Fig. 3 is the sequential chart of the embodiment of the invention.
Embodiment
Fig. 1 is the system chart of the embodiment of the invention, with reference to figure 1, this remote temperature-sensing system comprises: the remote computer main control unit, it can be ordinary individual's computer that Control Software has been installed of user's appointment, the user need register a mobile service supplier on the internet, is used for alerting signal is published to such as website or multimedia messages MMS etc.; Hub Hub, it is in order to connect long-range main control computer and controller, and a Hub can connect 50 controllers at most; Controller, it is in order to survey the signal from sensor from the radio frequency of 434MHz indicator, and a controller can be monitored 1～1024 sensor; Sensor, its direct detection temperature is issued alerting signal by 434MHz indicator radio frequency then in 6 meters scopes.
Described sensor comprises: 3 AG13 button cells of not replacing, hygrosensor, electric power starting button, a LED indicator, rubber button and radio transmission system; Described controller comprises: ac/dc adapter, 4 joint AA batteries are the backup that provides of AC power, a LED indicator, rubber button and radio receiving system, two metal dish of doing code check connect with two M3 screws between described controller and the Hub; Described Hub comprises: alterating and direct current source adapter, the backup battery when 4 joint AA batteries lost efficacy as AC power, a LED indicator.Its with controller between be connected by 100 M3 screws, it is connected to long-range main control computer by a RS232 cable; Described main control computer installed software is special use control or the monitoring software that programs according to the monitoring needs.
Turn on sensor power initiation button, the system unit power supply starts automatically then, depresses rubber key and maintenance, and whether lamp that as required can be by the LED indicator whether work by luminous affirmation system unit.By connecting two metal dish, and press controller rubber button, sensor is connected on the controller, and controller will assign a special id number to sensor, be also shown in simultaneously on the monitor screen of computing machine.The user also can write down this number as sign on sensor.
Sensor metal panel surface is put into above the object to survey the temperature of object, if temperature rises to 107.2 +/-0.8 , sensor will send an alarm signal in per ten minutes to controller, and the LED indicator also can glimmer once every 5 seconds simultaneously, so that the user can find early.
The local resonance frequency of temperature fine rule and IC (Integrated circuit, integrated circuit) all need be good in semifixed and adjustable product line adjusted, and the radio frequency between sensor and the controller connects length can reach 6 meters.
To controller battery and ac/dc adapter are installed, power initiation then, the light emitting diode indicator is luminous.With screw and general twisted-pair power cable such as AWG#24 line, Christmas lamp line or this type of line be connected controller and Hub, the maximum length of controller and the direct connecting line of Hub is no more than 300 meters.Each controller all has independent number by factory preset, and each controller can be monitored 1～1024 sensor.When receiving high temperature signal, controller will send alarm signal and sensor ID number to computing machine.
To Hub battery and ac/dc adapter are installed, energized then, the lamp of light emitting diode indicator is bright.Be connected controller and Hub with general twisted-pair power cable with screw, the maximum length of controller and the direct connecting line of Hub is no more than 300 meters.Each Hub can connect 50 controllers at most.Connect Hub and computing machine by RS232 computer port cable, cable length is no more than 2 meters.A Hub can only connect a computing machine, and Hub can send this controller of signal acquisition controller return signal and return computing machine then.Using Hub is in order to reduce number of computers, if the user only needs a controller just not need to use Hub.
The sensor ID coded system that each controller is monitored is 1～1024, so if any one sensor damages and when needing to replace, the user needs the sensor ID number of own these damages of deletion in computing machine.
Each controller and Hub have the built-in storer of IC, and increasing reserve battery is for preventing that the AC power outage from making the loss of data in the storer.
Fig. 2 is embodiment of the invention sensor circuit figure, with reference to figure 2: described sensor circuit mainly comprise little process chip 87P08, temperature measuring circuit, signal transmission circuit, signal receiving circuit, with the corresponding switch arrays of each sensor, clock circuit etc.
Temperature value is that (Negative TemperatureCoefficient: secondary temperature coefficient) resistance value obtains by the NTC in the monitor temperature metering circuit.This circuit is formed by being connected on standard 10K ohmic resistor (IOA2 pin), NTC resistance (IOA3 pin) and the direct earth capacitance of 0.1 microfarad.The ratio of standard 10K ohmic resistor and NTC resistance is the ratio in the duration of charging of 10K ohm * 0.1 microfarad and NTC resistance value * 0.1 microfarad, and the meaning is to be ratios of the product of resistance value and capacitance in the duration of charging in two RC loops.NTC resistance is to heat sensitive resistance, and when temperature raise, resistance value reduced.The secondary temperature coefficient of its resistance approximately is more than 10 times of coefficient of other metals.
The signal receiving circuit power supply is by the MOSFET of chip 87P08 pin IOB4 (Metallic Oxide Semiconductor Field Effect transistor, mos field effect transistor) controls, when the MOSFET of this pin cut off circuit, the receiving circuit power supply reduced so begins to charge the battery.
The signal transmission circuit power supply is the MOSFET control by chip 87P08 pin IOB2, and when the MOSFET of this pin cuts off circuit, the radiating circuit power supply reduces so begin to charge the battery.
Switch arrays from KI1 to KI4 and from S1 to S4 are finished the setting corresponding to the sensor ID of each sensor and detector ID.Switch arrays are 16 bit data of a matched sensors ID and detector ID.If diode has been installed representative " 1 ", otherwise representative " 0 ".
Embodiment 1:
This remote temperature sensor system is made up of a USB control module and some long distance wireless temperature sensors, and this system applies long distance wireless temperature sensor is for need monitoring temperature object provides computerized senior warning system.The number of the long distance wireless temperature sensor in system can reach 1024 at most, and can have 64 different systems simultaneously in a computing machine.
The radio frequency channel scope is between 310MHz～434MHz, according to the difference of using country and to some extent difference.Be 310MHz～434MHz for example, and be 434MHz in European available frequencies in U.S.'s available frequencies scope.
The detectable temperature range of radio temperature sensor that this remote temperature-sensing system uses is 0～50 degree centigrade, and the straight line transmission range is approximately 6 meters.
As follows from the process of sensor transmissions data:
1) the USB control module sends " request sends " order to the long distance wireless temperature sensor, should comprise system identifier and sensor ID in " request sends " order, so just can guarantee to have only sensor of interest that this order is produced response.
2) after the long distance wireless temperature sensor is received " request sends " order, give the USB control module as response to this order by transmitting temperature data information.
3) the USB control module repeated to send " request sends " order and gives each long distance wireless temperature sensor in the predefined time period.Predefined time range does not wait from 30 minutes by 60 minutes, and time range length depends on the actual quantity of the sensor that exists in the system, and the multiple more multiple cycle of sensor is long more.
Long distance wireless temperature sensor transmission data time sequence is as follows:
A) bit definitions:
0 bit: 0.3 millisecond of ms high level/0.9ms low level (shown in the 3a figure among Fig. 3)
1 bit: 0.9ms high level/0.3ms low level (shown in the 3b figure among Fig. 3)
B) " request sends " order (shown in 3c figure among Fig. 3)
Header+system identifier+sensor ID+" request sends " message
Amount to: 9+3+38.4=50.4ms
C) report data (shown in 3d figure among Fig. 3)
Header+system identifier+sensor ID+temperature data information
Amount to: 9+3+38.4=50.4ms
Wherein:
Sensor ID (10 bit): 000H---3FFH amounts to 1024 numerical value
System identifier (6 bit): 00H---3FH amounts to 64 numerical value
Temperature (6 bit): 00H---3FH amounts to 64 numerical value
Message (2 bit): 00H---03H amounts to 4 numerical value (reservation bit)
Complement code 2 seconds
The system identifier of 6 bits can be distinguished maximum 64 different systems in same computing machine, the sensor ID of 10 bits can be placed 1024 sensors at most in each system.Each Ethernet controllable all has a definite ID, so each USB control module can be handled 1024 sensors at most.
At last, the USB control module sends the state of temperature of sensor to computer applied algorithm, if temperature sensor has transmitted unusual temperature data, computer applied algorithm will dial to preset phone number by modulator-demodular unit, plays a default acoustic information or sends a short message to the recipient to the take over party by the internet.Thus, a long distance wireless temperature sensor system is set up successfully.
Embodiment 2:
This remote temperature-sensing system is made up of an Ethernet controllable and some remote temperature sensors.Each system's medium-long range temperature sensor quantity mostly is 1024 most.
The scope of radio frequency channel is between 310MHz～434MHz, according to the difference of country and to some extent difference.The frequency range of using in the U.S. is 310MHz～434MHz, and is 434MHz in the frequency of Europe usefulness.
The detectable temperature range of remote temperature sensor is 0～50 degree centigrade, and the straight line transmission range is approximately 6 meters.
The process of fetching data from sensor is as follows:
1) the Ethernet controllable sends " request sends " order to remote temperature sensor, should comprise system identifier and sensor ID in " request sends " order, so just can guarantee to have only sensor of interest that order is produced response.
2) after remote temperature sensor is received " request sends " order, temperature data information is sent it back the Ethernet controllable in response.
3) the Ethernet controllable repeated to send " request sends " order and gives each remote temperature sensor in the predefined time period.Predefined time period scope does not wait from 30 minutes by 60 minutes, and time range length depends on the actual quantity of the sensor that exists in the system, and the multiple more multiple cycle of sensor is long more.
Remote temperature sensor transmission data time sequence is as follows:
A) bit definitions:
0 bit: 0.3 millisecond of ms high level/0.9ms low level (shown in the 3a figure among Fig. 3)
1 bit: 0.9ms high level/0.3ms low level (shown in the 3b figure among Fig. 3)
B) " request sends " order (shown in 3c figure among Fig. 3)
Header+system identifier+sensor ID+" request sends " message
Amount to: 9+3+38.4=50.4ms
C) report data (shown in 3d figure among Fig. 3)
Header+system identifier+sensor ID+temperature data information
Amount to: 9+3+38.4=50.4ms
Wherein:
Sensor ID (10 bit): 000H---3FFH amounts to 1024 numerical value
System identifier (6 bit): 00H---3FH amounts to 64 numerical value
Temperature (6 bit): 00H---3FH amounts to 64 numerical value
Message (2 bit): 00H---03H amounts to 4 numerical value (reservation bit)
The system identifier of 6 bits can be distinguished maximum 64 different systems in same environment, the sensor ID of 10 bits can be placed 1024 sensors in each system.Each Ethernet controllable all has a definite ID, so an Ethernet controllable can be monitored 1024 sensors at most.
The Ethernet controllable is connected to personal computer by ethernet port, the user can directly connect personal computer and Ethernet controllable with the opposite interconnection line of the winding displacement orientation of two netting twine ports, perhaps connects personal computer and Ethernet controllable with common netting twine by Ethernet switch.
The IP address of Ethernet controllable can be the IP address of dispatching from the factory, and also can key in setting voluntarily by computer applied algorithm by the user.The temperature data of remote temperature sensor sends to computer applied algorithm by Internet protocol, and data presentation is a webpage, user even can observe state of temperature such as IE by common web browser.
Computer applied algorithm can the monitoring sensor temperature.If temperature sensor has been reported abnormal temperature, computer applied algorithm will be play a default voice message to the take over party by modem dialup, and thus, the controlled remote temperature-sensing system of Ethernet is set up successfully.
Though the present invention with preferred embodiment openly as above; right its is not in order to limiting the present invention, anyly is familiar with this operator, without departing from the spirit and scope of the invention; when doing a little change and retouching, the change of doing still belongs within the claims protection domain of the present invention with retouching.
Claims (10)
1. the remote temperature sensor system is characterized in that, it comprises:
The remote computer main control unit is in order to receive and to send the signal of sensor;
Hub is in order to connect main control computer and controller;
Controller, in order to receive and transmission from the signal of temperature sensor;
Some temperature sensors are in order to detecting temperature and send temperature signal to control module.
2. remote temperature-sensing system according to claim 1 is characterized in that, described remote computer main control unit is the Ethernet controllable.
3. remote temperature-sensing system according to claim 1 is characterized in that, described remote computer control module is the USB control module.
4. remote temperature-sensing system according to claim 1 is characterized in that described sensor comprises hygrosensor, radio transmission system, battery, LED indicator, button.
5. remote temperature-sensing system according to claim 1 is characterized in that described controller comprises the ac/dc adapter that backup battery can be provided, radio receiving system, LED indicator, two metal dish as code check, button.
6. remote temperature-sensing system according to claim 1 is characterized in that described hub comprises the alterating and direct current source adapter, backup battery, LED indicator, RS232 cable.
7. remote temperature-sensing system according to claim 1 is characterized in that, described hub can connect 1～50 controller.
8. remote temperature-sensing system according to claim 1 is characterized in that, described each controller can be monitored 1～1024 sensor.
9. remote temperature-sensing system according to claim 1, it is characterized in that, described sensor circuit comprises: little process chip, temperature measuring circuit, switch arrays, signal transmission circuit, signal receiving circuit, clock circuit, described temperature measuring circuit are to obtain temperature value by the NTC resistance value in the circuit; Described switch arrays are used to finish the setting to sensor ID.
10. remote temperature-sensing system according to claim 9 is characterized in that, described little process chip adopts the 87P08 chip.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610001052.6A CN101004853A (en) | 2006-01-18 | 2006-01-18 | Remote temperature-sensing system |
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| CN200610001052.6A CN101004853A (en) | 2006-01-18 | 2006-01-18 | Remote temperature-sensing system |
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| CN101004853A true CN101004853A (en) | 2007-07-25 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101900609A (en) * | 2010-06-21 | 2010-12-01 | 山东浪潮华光照明有限公司 | Method for detecting and controlling temperature of remote LED light source |
| CN104881989A (en) * | 2015-06-04 | 2015-09-02 | 成都胜英测控技术有限公司 | Clock-synchronization digital sensor system and signal processing method thereof |
| CN105203147A (en) * | 2015-09-25 | 2015-12-30 | 河海大学 | TEDS-based underwater robot detecting system and recognition and calibration method thereof |
| CN106796752A (en) * | 2014-11-14 | 2017-05-31 | 欧姆龙株式会社 | Measurement apparatus and its control method, managing device and its control method and measuring system |
-
2006
- 2006-01-18 CN CN200610001052.6A patent/CN101004853A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101900609A (en) * | 2010-06-21 | 2010-12-01 | 山东浪潮华光照明有限公司 | Method for detecting and controlling temperature of remote LED light source |
| CN106796752A (en) * | 2014-11-14 | 2017-05-31 | 欧姆龙株式会社 | Measurement apparatus and its control method, managing device and its control method and measuring system |
| CN104881989A (en) * | 2015-06-04 | 2015-09-02 | 成都胜英测控技术有限公司 | Clock-synchronization digital sensor system and signal processing method thereof |
| CN105203147A (en) * | 2015-09-25 | 2015-12-30 | 河海大学 | TEDS-based underwater robot detecting system and recognition and calibration method thereof |
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