CN2682461Y

CN2682461Y - Intelligent temperature controller

Info

Publication number: CN2682461Y
Application number: CN 200420030089
Authority: CN
Inventors: 房世平
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-01-07
Filing date: 2004-01-07
Publication date: 2005-03-02
Anticipated expiration: 2014-01-07

Abstract

The utility model belongs to a temperature monitoring device, particularly an intelligent temperature controller which can monitor and analyze temperature and can carry out the remote alarm. The utility model is composed of an SCM system 6, an input circuit 2 of a temperature setting value, a temperature display circuit 4 and a heating circuit 5, the system can achieve a remote alarm function by an in-built GSM communication module and has a higher intellectualized degree by the adoption of the monitor of an SCM, before and after a power source is started, the system can still set and display an expectant temperature value, after the power source is started, an actual temperature value can be displayed, a multiple-path sensor is input so that the system has the advantages of higher stability and accuracy, and the multiple heaters are simultaneously dispersed and heated so as to ensure the indoor space to heat up simultaneously; the utility model has the advantage of higher accuracy, and the range of a temperature error within 0.5 DEG C.

Description

Intelligent temperature controller

Technical field

The utility model belongs to device for detecting temperature, particularly a kind of intelligent temperature controller to monitoring temperature, analysis and remote alarms.

Technical background

At present, the temperature monitoring method that the flowers greenhouse of China adopts can be divided into two kinds substantially: a kind of is pure manual monitoring, promptly by manually determining needs whether to heat up with in the methods such as illumination, burning boiler, the stove that makes a fire one or more according to the measured value of thermometer; Another kind is that the method that adopts simulation or intelligence control circuit control electric heater or control to be installed in the solenoid valve of caliduct is carried out temperature control.Preceding a kind of method need expend a large amount of human and material resources, temperature error is very big, though a kind of method in back has realized automatic control and Based Intelligent Control, control accuracy has also reached certain level, but do not have remote alarm capability and incident analysis ability, so still can't realize no worker monitor.

Summary of the invention

The utility model is in order to overcome the deficiencies in the prior art, and providing a kind of is control core, the embedded with mobile phone GSM mobile communication module intelligent temperature controller as the remote alarms module with single-chip microcomputer.

The technical scheme that its technical matters that solves the utility model adopts is: the intelligent temperature controller that is made of Single Chip Microcomputer (SCM) system, desired temperature input circuit, temperature display circuit, heater circuit; Be characterized in system, being provided with temperature sensing circuit, it comprises: 24 of analog to digital converter U4,25,7 pin meet 21 of single-chip microcomputer U1,22,25 pin, 6,22 pin connect 1 pin of rejection gate U9A, 9 pin connect 4 pin of rejection gate U9B, 10 pin connect 4 pin of frequency divider U2,17,14,15,8,18,19,20,21 pin respectively with 1 of bus buffer U11,4,10,1 of 13 pin and bus buffer U3,4,10,13 pin and with 32 of single-chip microcomputer U1,33,34,35,36,37,38,39 pin connect, 11,12 pin connect+the 5V power supply, 26,27,28,1 pin meets M1 respectively, M2, M3, M4,13 pin ground connection; 1 pin of frequency divider U2 connects 30 pin of single-chip microcomputer U1, and 2 pin connect 3 pin; 1 pin of rejection gate U9A connects 16 pin of U1, and 2 pin connect 28 pin of U1, and 5 pin of rejection gate U9B connect 28 pin of single-chip microcomputer U1, and 6 pin connect 26 pin of single-chip microcomputer U1; The remote alarms circuit, it comprises: bus buffer U11 and U3, their 14 pin all connect+the 5V power supply, the equal ground connection of 7 pin, 2,3,5,6,8,9,10,11,12 pin jointing temp detection module M5; 1,4,10,13 pin of bus buffer U11 connect 32,33,34,35 pin of single-chip microcomputer U1 respectively, and 1,4,10,13 pin of bus buffer U3 connect 36,37,38,39 pin of single-chip microcomputer U1 respectively; 8,9 pin of rejection gate U9C connect 16,27 pin of single-chip microcomputer U1,1 pin of the driver connected U10A of 10 pin, 2 pin of driver U10A connect 14 pin of single-chip microcomputer U1, the end of 18 pin connecting resistance R25,1 pin of another termination triode Q1 of resistance R 25, the 2 pin ground connection of triode Q1,3 pin connect the end of hummer B1, another termination+5V power supply of hummer B1.

The novel beneficial effect of this use is:

1, this system realizes the remote alarms function by embedded gsm communication module.

2, this system adopts microcomputer monitoring, has higher intelligent degree, can analyze the abnormal conditions of burst, and notify the related personnel with the result with the form of mobile phone short message.

3, this system all can set before opening power and afterwards and show the desired temperatures value, can show the temperature value of reality after opening power.

4, the multiple sensor input makes system have advantages of higher stability and degree of accuracy.

5, many well heaters while dispersed-heated guarantee that the interior space heats up synchronously.

6, the precision of this system is higher, and the temperature error scope is 0.5 degree centigrade.

Description of drawings

Below in conjunction with accompanying drawing to specify

Fig. 1 is the system architecture diagram of intelligent temperature controller

Fig. 2 is the way circuit figure of Fig. 1.

Fig. 3 is the main program block diagram of Fig. 1.

Fig. 4 is the interrupt service routine block diagram of Fig. 1.

Fig. 5 is the temperature display subroutine block diagram of Fig. 1.

Fig. 6 is the temperature detection subroutine block diagram of Fig. 1.

Fig. 7 is the temperature control subprogram block diagram of Fig. 1.

Fig. 8 is the warning subroutine block diagram of Fig. 1.

Among the figure, the 1-temperature sensing circuit; 2-desired temperature input circuit; The 3-remote alarms buzzer alarm circuit; The 4-temperature display circuit; The 5-heater circuit; The 6-Single Chip Microcomputer (SCM) system; D1, D2-charactron display; The U1-single-chip microcomputer; The U2-frequency divider; U3, U11-bus buffer; The U4-analog to digital converter; U5, U6-shift register; U7-and door; The U8A-not gate; The U9A-rejection gate; The U9B-rejection gate; The U9C-rejection gate; The U10A-driver; A1, A2-dial; T1-photoelectricity coupling two-way thyristor; The T2-thyristor; R1-R34-resistance; C1-C4-electric capacity; The Y1-crystal oscillator; The B1-hummer; The K1-switch; The Q1-triode; The M1-M4-temperature detecting module; The M5-GSM mobile communication module.

Embodiment:

With reference to accompanying drawing 1, intelligent temperature controller be the monitoring core by Single Chip Microcomputer (SCM) system 6, by desired temperature input circuit 2 input setting values, temperature sensing circuit 1 input actual measured value is handled through each software program, by heater circuit 5 control temperature, temperature display circuit 4 display setting temperature and actual temperatures, 6 pairs of accidents of Single Chip Microcomputer (SCM) system are analyzed, remote alarms buzzer alarm circuit 3 report to the police, finish unmanned full-automatic monitoring to temperature.

Temperature sensing circuit 1 is made up of analog to digital converter U4, frequency divider U2, rejection gate U9A, U9B, temperature detecting module M1, M2, M3, M4.The structure of temperature detecting module M1, M2, M3, M4 is identical.Their annexation: 24,25,7 pin of analog to digital converter U4 connect 21,22,25 pin of single-chip microcomputer U1,6,22 pin connect 1 pin of rejection gate U9A, 9 pin connect 4 pin of rejection gate U9B, 10 pin connect 4 pin of frequency divider U2,17,14,15,8,18,19,20,21 pin are connected with 1,4,10,13 pin of 1,4,10,13 pin of bus buffer U11 and bus buffer U3 and with 32,33,34,35,36,37,38,39 pin of single-chip microcomputer U1 respectively, 11,12 pin connect+the 5V power supply, 26,27,28,1 pin meets M1, M2, M3, M4 respectively, 13 pin ground connection; 1 pin of frequency divider U2 connects 30 pin of single-chip microcomputer U1, and 2 pin connect 3 pin; 1 pin of rejection gate U9A connects 16 pin of U1, and 2 pin connect 28 pin of U1, and 5 pin of rejection gate U9B connect 28 pin of U1, and 6 pin connect 26 pin of U1.

Desired temperature input circuit 2 is made up of dial A1, A2, resistance R 11, R18-R24.What the design adopted is the binary-coded decimal dial, and dial A1, A2 all can be provided with desired temperature under the situation of open and close power supply, and toggle switch itself can the displays temperature setting value.Wherein, dial A2 is desired temperature ten place values, and the A1 dial is a desired temperature place value.1,2,3,4 pin of their annexation: A1 connect the end of 1,2,3,4 pin of single-chip microcomputer U1 and resistance R 24, R18, R23, R22,1,2,3,4 pin of A2 connect the end of 5,6,7,8 pin of single-chip microcomputer U1 and resistance R 21, R20, R19, R11, another termination+5V power supply of resistance R 24, R18, R23, R22, R21, R20, R19, R11.

Remote alarms buzzer alarm circuit 3 form by bus buffer U11, U3, GSM mobile communication module M5, hummer B1, triode Q1, driver U10A, Sheffer stroke gate U9C, resistance R 25.The function of bus buffer U11, U3 is that the keyboard operation signal of analogue mobile phone is operated GSM mobile communication module M5.The function of this circuit is to send short message, call and carry out remote alarms according to the control signal of single-chip microcomputer.The control principle of GSM mobile communication module M5 is: whether send the conducting of impulse level signal by baseband processor row signal pins and column signal pin among bus buffer U11, the U3 control GSM mobile communication module M5 by single-chip microcomputer, the ON time of baseband processor row signal pins and column signal pin surpasses 10ns in GSM mobile communication module M5, baseband processor thinks that promptly its corresponding key presses the efficient in operation that it is corresponding.Make native system have the transmission note of this GSM mobile communication module M5 and call function by this control principle and supporting software.The accident that native system will need to report to the police is divided into three kinds: high temperature, low temperature, accident, and one or several telephone number is sent the note of corresponding contents and call out at different accidents.When observed temperature is higher than 2 degrees centigrade of design temperatures or be lower than 3 degrees centigrade of design temperatures, system thinks and accident occurs, alert program starts automatically, hummer rings, this moment, system further analyzed accident, if the temperature value of any two sensor measurements differs above 6 degrees centigrade, then think and have an accident that (reason may be a fire, the greenhouse is run-down etc.), transmission is arranged on the accident alarming note in the mobile communication module M5 in advance and calls out to telephone number corresponding in system, otherwise according to observed temperature whether, telephone number corresponding is sent be arranged on the high/low temperature alarming short message in the mobile communication module M5 in advance and call out greater than design temperature.Their annexation: 2 of bus buffer U11,5,8 pin connect the capable signal pins of first keyboard of baseband processor among the GSM mobile communication module M5,11 pin of bus buffer U11 and

bus buffer U3

2,5 pin connect second capable signal pins of keyboard of baseband processor among the GSM mobile communication module M5,8 of bus buffer U3,11 pin connect the 3rd the capable signal pins of keyboard, 3 of bus buffer U11,9 pin of 12 pin and bus buffer U3 connect first keyboard column signal pin, 3 of 6 pin of bus buffer U11 and bus buffer U3,12 pin connect second keyboard column signal pin, and 9 pin of bus buffer U11 and 6 pin of bus buffer U3 connect the 3rd keyboard column signal pin.1,4,10,13 pin of bus buffer U11 connect 32,33,34,35 pin of single-chip microcomputer U1 respectively, 1,4,10,13 pin of bus buffer U3 connect 36,37,38,39 pin of single-chip microcomputer U1 respectively, the 7 pin ground connection of 7 pin of bus buffer U11 and bus buffer U3,14 pin of bus buffer U11 and 14 pin of bus buffer U3 connect power supply.

Temperature display circuit 4 is by shift register U5, U6, form with door U7 and charactron display D1, D2.This circuit adopts static display packing, and temperature value outputs to shift register U5, U6 by the serial ports of single-chip microcomputer, supplies with charactron display D1, D2, and wherein charactron display D1 shows a position, and charactron display D2 shows ten.Their annexation: 7 of charactron display D1,6,4,2,1,9,10,5 pin respectively with resistance R 2, R3, R4, R5, R6, R7, R1, the end of R8 connects, 3 pin connect+the 5V power supply, 7 of charactron display D2,6,4,2,1,9,10,5 pin respectively with resistance R 9, R10, R13, R14, R15, R16, R12, the end of R17 connects, 3 pin connect+the 5V power supply, 13 of shift register U5,12,11,10,6,5,4,3 pin and resistance R 2, R3, R4, R5, R6, R7, R1, the other end of R8 connects, 8 pin and with 3 pin of door U7,8 pin of shift register U6 connect, 9 pin of shift register U5 connect+the 5V power supply, 1,2 pin connect 13 pin of shift register U6,13 of shift register U6,12,11,10,6,5,4,3 pin and resistance R 9, R10, R1 3, R14, R15, R16, R12, the other end of R17 connects, 1 of shift register U6,2 pin connect 10 pin of single-chip microcomputer U1,9 pin connect+the 5V power supply, with 1 of door U7,2 pin meet 12 of single-chip microcomputer U1 respectively, 11 pin.

Heater circuit 5 is made up of photoelectricity coupling two-way thyristor T1, thyristor T2, not gate U8A, resistance R 28, R29, R30, capacitor C 4, electric heater R31, R32, R33, R34.Photoelectricity coupling two-way thyristor T1 plays the protection single-chip microcomputer, and resistance R 30, capacitor C 4 strobe.The function of this circuit is that the control signal of carrying out single-chip microcomputer heats or stop heating.Their annexation: 1 pin of not gate U8A connects 26 pin of single-chip microcomputer U1, the end of 2 pin connecting resistance R28, the other end of the 1 pin connecting resistance R28 of photoelectricity coupling two-way thyristor T1,2 pin ground connection, 3 pin connect 2 pin of thyristor T2, the end of 4 pin connecting resistance R29, the other end of the 1 pin connecting resistance R29 of thyristor T2, one end of 220V AC power and

resistance R

30,3 pin meet an end and the electric heater R31 of capacitor C 4, R32, R33, the end of R34, the other end of the other end connecting resistance R30 of capacitor C 4, electric heater R31, R32, R33, the other end of the termination 220V AC power of R34.

The course of work of master routine (its block diagram such as Fig. 3): interrupt mode is adopted in this design, at first carry out the initialization of serial port during work, temperature display subroutine displays temperature setting value is called in the initialization of timer then, interrupt system is carried out initialization, waits for regularly at last and interrupting.

The course of work of interrupt service routine (its block diagram such as Fig. 4): at first judge whether 10 seconds by timer: if not, then return; If then timer sends and regularly interrupts application and call temperature detection subroutine, temperature control subprogram successively, interrupts at last returning.

The course of work of temperature display subroutine (its block diagram such as Fig. 5): at first read in desired temperature, the display setting value also is translated into 16 systems and preservation, and delaying time then allowed the staff see the temperature displayed setting value clearly in 5 seconds, returned at last.

The course of work of temperature detection subroutine (its block diagram such as Fig. 6): at first each measuring point is carried out 4 times and detect and obtain the effective value of the mean value of 4 detected values of each measuring point as this measuring point, the mean value of obtaining four measuring point effective values then is as the last effective value of this time detection and display it, and returns at last.

The course of work of temperature control subprogram (its block diagram such as Fig. 7): judge that at first the observed temperature value is whether less than setting value: if, then drive well heater, judge that then the observed temperature value is whether less than setting value more than 3 degrees centigrade, if not, then return, if the observed temperature value, is then returned more than 3 degrees centigrade less than setting value for the first time, if not, then call the warning subroutine and return; If the observed temperature value is not less than setting value, then closes well heater and judge that the observed temperature value is whether greater than setting value more than 2 degrees centigrade: if not, then return; If, then call the warning subroutine, return then.

Warning subroutine (its block diagram such as Fig. 8) is when observed temperature is higher than 2 degrees centigrade of design temperatures or be lower than 3 degrees centigrade of design temperatures, system thinks and accident occurs, the warning subroutine starts automatically, hummer rings, this moment, system further analyzed accident: if the temperature value of any two sensor measurements differs above 6 degrees centigrade, then think and have an accident that (reason may be a fire, the greenhouse is run-down etc.), system is arranged on the accident alarming note in the mobile communication module M5 in advance to specific telephone number transmission and calls out, this moment, the staff utilized the place that the incoming call display function of mobile phone can the judgement accident takes place, and can judge the type of alarm according to the content of note; Otherwise according to observed temperature whether, specific telephone number is sent be arranged on the high/low temperature alarming short message in the mobile communication module M5 in advance and call out greater than design temperature.Its course of work: at first hummer rings, and judges whether to occur accident: if, then particular telephone number sending the failure warning note and called out 30 seconds, terminated call is closed hummer and is also returned then; If not, judge then whether the observed temperature value is higher than set temperature value, if, then particular telephone number is sent the heat alert note and called out 30 seconds, terminated call is closed hummer and is also returned then, if not, then particular telephone number is sent the low temperature alarm note and called out 30 seconds, terminated call is closed hummer and is also returned then.

The course of work of this controller: at first set during work and expect that (this value is the decimal system to two temperature values that reach by the user, unit is degree centigrade, 0 to 60 degree centigrade of scope), opening power then, single-chip microcomputer U1 automatically resets, master routine carries out initialization, this moment charactron display D1, D2 is by temperature display subroutine display setting temperature value, so that operating personnel check design temperature, interrupt service routine brings into operation then, temperature sensing circuit 1 is with temperature detecting module M1, M2, M3, the measured temperature input single-chip microcomputer U1 of M4, after carrying out software filtering, the temperature detection subroutine gets its mean value as the observed temperature value, after this charactron display D1, D2 will show the observed temperature value always, and the temperature control subprogram can be made the control corresponding action according to observed temperature value and set temperature value.When the observed temperature value is higher than 2 degrees centigrade of set temperature value or be lower than 3 degrees centigrade of set temperature value, system thinks and accident occurs, call the warning subroutine, hummer B1 sends the sound, the warning subroutine is analyzed accident, accident is divided into three kinds: high temperature, low temperature, accident, and one or several telephone number is sent the note of corresponding contents and call out at different accidents.

Claims

1, a kind of intelligent temperature controller is made of Single Chip Microcomputer (SCM) system (6), desired temperature input circuit (2), temperature display circuit (4), heater circuit (5), it is characterized in that:

A, in system, be provided with temperature sensing circuit (1), it comprises: 24 of analog to digital converter U4,25,7 pin meet 21 of single-chip microcomputer U1,22,25 pin, 6,22 pin connect 1 pin of rejection gate U9A, 9 pin connect 4 pin of rejection gate U9B, 10 pin connect 4 pin of frequency divider U2,17,14,15,8,18,19,20,21 pin respectively with 1 of bus buffer U11,4,10,1 of 13 pin and bus buffer U3,4,10,13 pin and with 32 of single-chip microcomputer U1,33,34,35,36,37,38,39 pin connect, 11,12 pin connect+the 5V power supply, 26,27,28,1 pin meets M1 respectively, M2, M3, M4,13 pin ground connection; 1 pin of frequency divider U2 connects 30 pin of single-chip microcomputer U1, and 2 pin connect 3 pin; 1 pin of rejection gate U9A connects 16 pin of U1, and 2 pin connect 28 pin of U1, and 5 pin of rejection gate U9B connect 28 pin of single-chip microcomputer U1, and 6 pin connect 26 pin of single-chip microcomputer U1;

B, remote alarms circuit (3), it comprises: bus buffer U11 and U3, their 14 pin all connect+the 5V power supply, the equal ground connection of 7 pin, 2,3,5,6,8,9,10,11,12 pin jointing temp detection module M5; 1,4,10,13 pin of bus buffer U11 connect 32,33,34,35 pin of single-chip microcomputer U1 respectively, and 1,4,10,13 pin of bus buffer U3 connect 36,37,38,39 pin of single-chip microcomputer U1 respectively; 8,9 pin of rejection gate U9C connect 16,27 pin of single-chip microcomputer U1,1 pin of the driver connected U10A of 10 pin, 2 pin of driver U10A connect 14 pin of single-chip microcomputer U1, the end of 18 pin connecting resistance R25,1 pin of another termination triode Q1 of resistance R 25, the 2 pin ground connection of triode Q1,3 pin connect the end of hummer B1, another termination+5V power supply of hummer B1.