CN204404690U - A kind of extension set circuit of refrigeration plant wireless alarm system - Google Patents
A kind of extension set circuit of refrigeration plant wireless alarm system Download PDFInfo
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- CN204404690U CN204404690U CN201420865417.XU CN201420865417U CN204404690U CN 204404690 U CN204404690 U CN 204404690U CN 201420865417 U CN201420865417 U CN 201420865417U CN 204404690 U CN204404690 U CN 204404690U
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Abstract
The utility model relates to technical field of refrigeration equipment, especially a kind of extension set circuit of refrigeration plant wireless alarm system.It comprises main controller, for arrange extension address coding circuit, for coded data being modulated to the radiating circuit of the radio wave of 315MHz, enabling testing circuit, overtemperature testing circuit, power failure detection circuit, battery low-electricity quantity testing circuit and sound light alarming circuit; Wherein, coding circuit, radiating circuit, equipment enabling testing circuit, overtemperature testing circuit, power failure detection circuit, battery low-electricity quantity testing circuit are connected with main controller respectively with sound light alarming circuit.The utility model extension set circuit arrangement can be arranged in each refrigeration plant, be greater than the signals such as setting value, power failure, battery power be too low to temperature higher than setting value, opening time differentiate and send corresponding alarm, can monitor temperature and various fault, its structure is simple, warning is efficient directly perceived, has very strong practicality.
Description
Technical field
The utility model relates to technical field of refrigeration equipment, especially a kind of extension set circuit of refrigeration plant wireless alarm system.
Background technology
In hospital, blood station and Disease control system, all kinds of bacterial strain, reagent and vaccine etc. all need to store with refrigeration plant, such as refrigerator or freezer, thus the monitoring of medical refrigerator and freezer is very important.At present, on market, existing all kinds of temperature monitoring system majority is merely able to monitor temperature, in temperature higher than setting value alarm, and to cause the various faults of temperature anomaly as refrigerator doors do not fasten, refrigerator power-off etc. can not accomplish monitoring in time and report to the police, and the structure of traditional refrigeration plant warning system is often more complicated, price is higher.
Utility model content
For above-mentioned the deficiencies in the prior art, the purpose of this utility model is the extension set circuit of the refrigeration plant wireless alarm system providing a kind of simple and efficient.
To achieve these goals, the utility model adopts following technical scheme:
A kind of extension set circuit of refrigeration plant wireless alarm system, it comprise main controller, for arrange extension address coding circuit, for coded data being modulated to the radiating circuit of the radio wave of 315MHz, enabling testing circuit, overtemperature testing circuit, power failure detection circuit, battery low-electricity quantity testing circuit and sound light alarming circuit, described coding circuit, radiating circuit, equipment enabling testing circuit, overtemperature testing circuit, power failure detection circuit, battery low-electricity quantity testing circuit are connected with main controller respectively with sound light alarming circuit.
Preferably, described coding circuit comprises the 19 resistance, plucking number sign switch and PT2262 type coding chip, described 19 resistance is connected between the OBC2 pin of coding chip and its OSC1 pin, the A0 pin of described coding chip, A1 pin and A2 pin are respectively by the 16 resistance, 17 resistance be connected 5V power supply with the 18 resistance and with the first pin of plucking number sign switch, second pin is connected with the 3rd pin, the D0 pin of described coding chip, D1 pin, D2 pin, D3 pin and TE pin respectively with the PD0 pin of main controller, PD1 pin, PD2 pin, PD3 pin is connected with PD4 pin.
Preferably, described radiating circuit comprises TC315M type transmitting chip, and the DATA pin of described transmitting chip is connected with the Dout pin of coding chip.
Preferably, described enabling testing circuit comprises the 20 resistance and magnetic switch, and the PB7 pin of described main controller connects+5V power supply by the 20 resistance and by magnetic switch ground connection.
Preferably, described overtemperature testing circuit comprises the 11 resistance, thermistor, the 5th button, the 6th button and the 7th button, the PC4 pin of described main controller is connected with the 11 resistance and thermistor, described thermistor is parallel with the 8th electric capacity, and the PB1 pin of described 5th button, the 6th button and the 7th button and main controller, PB2 pin and PB3 pin are connected.
Preferably, described battery low-electricity quantity testing circuit comprises the 13 resistance, the 11 electric capacity and the 6th commutation diode, described 13 resistance is connected with the PC5 pin of main controller with the 11 electric capacity, 13 resistance of described serial connection and the two ends of the 11 electric capacity are also connected to battery, and the anode of described 6th commutation diode is connected between the 13 resistance and battery, negative electrode connects+5V power supply.
Preferably, described power failure detection circuit comprises the 5th commutation diode, the 12 resistance, the 15 resistance, the 9th electric capacity and the tenth electric capacity, described 12 resistance, the 15 resistance and the 9th electric capacity are connected to the PC3 pin of main controller, ten two resistance of described tenth Capacitance parallel connection in serial connection and the two ends of the 15 resistance, the negative electrode of described 5th commutation diode is connected between the 12 resistance and the tenth electric capacity, and the anode of described 5th commutation diode is connected with power circuit.
Preferably, described sound light alarming circuit comprises the 5th light emitting diode, 6th light emitting diode, 7th light emitting diode, 8th light emitting diode, second triode and buzzer, described 5th light emitting diode, 6th light emitting diode, 7th light emitting diode, 8th light emitting diode is respectively by the 29 resistance, 30 resistance, the PD5 pin of the 31 resistance and the 32 resistance and main controller, PD6 pin, PD7 pin is connected with PB0 pin, described buzzer is connected with the colelctor electrode of the second triode, the base stage of described second triode is connected with the PC0 pin of main controller by the 23 resistance.
Preferably, the PB4 pin of described main controller and PB5 pin are connected with dibit charactron by 74HC164 type shift register, exclusion is connected with between described dibit charactron and shift register, 9th pin of described dibit charactron and the tenth pin are connected with the 3rd triode and the 4th triode, and the base stage of described 3rd triode and the 4th triode is connected by the PC1 pin of the 22 resistance and the 21 resistance and main controller and PC2 pin.
Preferably, described main controller is ATmega48 single-chip microcomputer.
Owing to have employed such scheme, extension set circuit arrangement of the present utility model can be arranged in each refrigeration plant, be greater than the signals such as setting value, power failure, battery power be too low to temperature higher than setting value, opening time differentiate and send corresponding alarm, can monitor temperature and various fault, its structure is simple, warning is efficient directly perceived, has very strong practicality.
Accompanying drawing explanation
Fig. 1 is the circuit connection structure figure of the utility model embodiment.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
As shown in Figure 1, the extension set circuit of a kind of refrigeration plant wireless alarm system of the present embodiment, it comprise main controller U9, for arrange extension address coding circuit, for coded data being modulated to the radiating circuit of the radio wave of 315MHz, enabling testing circuit, overtemperature testing circuit, power failure detection circuit, battery low-electricity quantity testing circuit and sound light alarming circuit, coding circuit, radiating circuit, equipment enabling testing circuit, overtemperature testing circuit, power failure detection circuit, battery low-electricity quantity testing circuit are connected with main controller U9 respectively with sound light alarming circuit.
The coding circuit of the present embodiment comprises the 19 resistance R19, plucking number sign switch SW3 and PT2262 type coding chip U7; Wherein, 19 resistance R19 is connected between the OBC2 pin of coding chip U7 and its OSC1 pin, the A0 pin of coding chip U7, A1 pin and A2 pin are connected 5V power supply respectively by the 16 resistance R16, the 17 resistance R17 with the 18 resistance R18 and are connected with first pin of plucking number sign switch SW3, the second pin and the 3rd pin, and the D0 pin of coding chip U7, D1 pin, D2 pin, D3 pin and TE pin are connected with the PD0 pin of main controller U9, PD1 pin, PD2 pin, PD3 pin and PD4 pin respectively.Plucking number sign switch SW3 is connected with 3 bit address lines after coding chip U7, and high 3 bit address then connect low level, and establish reset or " 1 " to arrange extension address by plucking number sign switch SW3, main frame identifies extension set by address.When main controller U9 has detected alarm events, the PD0-PD3 pin of corresponding main controller U9 has exported high level, and PD4 pin becomes low level simultaneously, triggers coding chip U7 and sends coding.
Radiating circuit comprises TC315M type transmitting chip U6, and the DATA pin of transmitting chip U6 is connected with the Dout pin of coding chip U7, coded data is modulated to the radio wave of 315MHz.
Sound light alarming circuit comprises the 5th LED 5, the 6th LED 6, the 7th LED 7, the 8th LED 8, second triode Q2 and buzzer LS2; Wherein, 5th LED 5, the 6th LED 6, the 7th LED 7, the 8th LED 8 are connected respectively by the PD5 pin of the 29 resistance R29, the 30 resistance R30, the 31 resistance R31 and the 32 resistance R32 and main controller U9, PD6 pin, PD7 pin and PB0 pin, buzzer LS2 is connected with the colelctor electrode of the second triode Q2, and the base stage of the second triode Q2 is connected with the PC0 pin of main controller U9 by the 23 resistance R23.
Enabling testing circuit comprises the 20 resistance R20 and magnetic switch SW4, and the PB7 pin of main controller U9 connects+5V power supply by the 20 resistance R20 and by magnetic switch SW4 ground connection.Magnetic switch SW4 is installed on the door of refrigeration plant, and magnetic switch SW4 disconnects under normal circumstances, and the PB7 pin of main controller U9 is in high level.When the door is open, magnetic switch SW4 closes, and the PB7 pin of main controller U9 is in low level, now main controller U9 starts timing, then send alarm command when being greater than time (such as 5 minutes) of setting, namely the 6th LED 6 is bright, simultaneously buzzer LS2 ring.
Overtemperature testing circuit comprises the 11 resistance R11, thermistor R14, the 5th button SW5, the 6th button SW6 and the 7th button SW7, the PC4 pin of main controller is connected with the 11 resistance R11 and thermistor R14, thermistor R14 is parallel with the 8th electric capacity C8, and the PB1 pin of the 5th button SW5, the 6th button SW6 and the 7th button SW7 and main controller U9, PB2 pin and PB3 pin are connected.5th button SW5, the 6th button SW6 and the 7th button SW7 are respectively that temperature adds, temperature subtracts the function with temperature setting, and the PC4 pin of main controller U9 is arranged to A/D function, and its reference voltage is 5V, by the temperature of A/D converted measurement refrigeration plant.When the temperature is changed, the resistance of thermistor R14 changes, and the level of the PC4 pin of main controller U9 changes thereupon, and when temperature exceedes settings, then alert trigger, namely the 5th LED 5 is bright, and buzzer LS2 rings simultaneously.
Battery low-electricity quantity testing circuit comprises the 13 resistance R13, the 11 electric capacity C11 and the 6th commutation diode D6,13 resistance R13 is connected with the PC5 pin of main controller U9 with the 11 electric capacity C11,13 resistance R13 of serial connection and the two ends of the 11 electric capacity C11 are also connected to battery BT, and the anode of the 6th commutation diode D6 is connected between the 13 resistance R13 and battery BT, negative electrode connects+5V power supply.Battery BT in extension set powers to extension set when being mainly used in civil power power-off.When civil power disconnects, 5V power end voltage drop, as <3.9V, battery BT is by the 6th commutation diode D6 to system power supply, and maintain the normal operation of extension set and send warning, cell voltage is 4.5V.The PC5 pin of main controller U9 is arranged to A/D function, reference voltage is 5V, the PC5 pin of battery and main controller U9 is transferred by R13 current limliting, main controller U9 directly measures battery BT voltage by A/D conversion, when reporting to the police lower than sending low electricity during setting, namely the 8th LED 8 is bright, and buzzer LS2 rings simultaneously.
Power failure detection circuit comprises the 5th commutation diode D5, the 12 resistance R12, the 15 resistance R15, the 9th electric capacity C9 and the tenth electric capacity C10,12 resistance R12, the 15 resistance R15 and the 9th electric capacity C9 are connected to the PC3 pin of main controller U9, tenth electric capacity C10 is parallel to the 12 resistance R12 of serial connection and the two ends of the 15 resistance R15, the negative electrode of the 5th commutation diode D5 is connected between the 12 resistance R12 and the tenth electric capacity C10, and the anode of the 5th commutation diode D5 is connected with power circuit.The power supply of whole extension set is by mains-supplied under normal circumstances, because battery BT voltage is 4.5V, so not by the 6th commutation diode D6.When civil power disconnects, the voltage of the PC3 pin of main controller U9 transfers low level to by high level, gives the alarm when main controller U9 detects low level signal, and namely the 7th LED 7 is bright, and buzzer LS2 rings simultaneously.
The PB4 pin of main controller U9 and PB5 pin are connected with dibit charactron DS2 by 74HC164 type shift register U10, exclusion is connected with between dibit charactron DS2 and shift register U10,9th pin of dibit charactron DS2 and the tenth pin are connected with the 3rd triode Q3 and the 4th triode Q4, and the base stage of the 3rd triode Q3 and the 4th triode Q4 is connected by the PC1 pin of the 22 resistance R22 and the 21 resistance R21 and main controller U9 and PC2 pin.Dibit charactron DS2 is used for display alarm temperature.
Simply be easy to make circuit control, main controller U9 adopts ATmega48 single-chip microcomputer.Extension sets is arranged in each refrigeration plant, and for monitor temperature and various fault, and the address of self and failure code are transmitted to main frame, main frame is monitored each extension set, and analyzes the location, location of each extension set and failure code.When appearance (1) temperature is higher than setting value; (2) opening time >5mi n; (3) power failure; (4), when battery power is too low, all sound and light alarm can be sent.Staff can judge position and the fault category of extension set according to the extension number of indicator lamp and display, process dependent failure in time.
The foregoing is only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model description and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (10)
1. the extension set circuit of a refrigeration plant wireless alarm system, it is characterized in that: it comprise main controller, for arrange extension address coding circuit, for coded data being modulated to the radiating circuit of the radio wave of 315MHz, enabling testing circuit, overtemperature testing circuit, power failure detection circuit, battery low-electricity quantity testing circuit and sound light alarming circuit, described coding circuit, radiating circuit, equipment enabling testing circuit, overtemperature testing circuit, power failure detection circuit, battery low-electricity quantity testing circuit are connected with main controller respectively with sound light alarming circuit.
2. the extension set circuit of a kind of refrigeration plant wireless alarm system as claimed in claim 1, it is characterized in that: described coding circuit comprises the 19 resistance, plucking number sign switch and PT2262 type coding chip, described 19 resistance is connected between the OBC2 pin of coding chip and its OSC1 pin, the A0 pin of described coding chip, A1 pin and A2 pin are respectively by the 16 resistance, 17 resistance be connected 5V power supply with the 18 resistance and with the first pin of plucking number sign switch, second pin is connected with the 3rd pin, the D0 pin of described coding chip, D1 pin, D2 pin, D3 pin and TE pin respectively with the PD0 pin of main controller, PD1 pin, PD2 pin, PD3 pin is connected with PD4 pin.
3. the extension set circuit of a kind of refrigeration plant wireless alarm system as claimed in claim 1, it is characterized in that: described radiating circuit comprises TC315M type transmitting chip, the DATA pin of described transmitting chip is connected with the Dout pin of coding chip.
4. the extension set circuit of a kind of refrigeration plant wireless alarm system as claimed in claim 3, it is characterized in that: described enabling testing circuit comprises the 20 resistance and magnetic switch, the PB7 pin of described main controller connects+5V power supply by the 20 resistance and by magnetic switch ground connection.
5. the extension set circuit of a kind of refrigeration plant wireless alarm system as claimed in claim 4, it is characterized in that: described overtemperature testing circuit comprises the 11 resistance, thermistor, the 5th button, the 6th button and the 7th button, the PC4 pin of described main controller is connected with the 11 resistance and thermistor, described thermistor is parallel with the 8th electric capacity, and the PB1 pin of described 5th button, the 6th button and the 7th button and main controller, PB2 pin and PB3 pin are connected.
6. the extension set circuit of a kind of refrigeration plant wireless alarm system as claimed in claim 5, it is characterized in that: described battery low-electricity quantity testing circuit comprises the 13 resistance, the 11 electric capacity and the 6th commutation diode, described 13 resistance is connected with the PC5 pin of main controller with the 11 electric capacity, 13 resistance of described serial connection and the two ends of the 11 electric capacity are also connected to battery, and the anode of described 6th commutation diode is connected between the 13 resistance and battery, negative electrode connects+5V power supply.
7. the extension set circuit of a kind of refrigeration plant wireless alarm system as claimed in claim 6, it is characterized in that: described power failure detection circuit comprises the 5th commutation diode, 12 resistance, 15 resistance, 9th electric capacity and the tenth electric capacity, described 12 resistance, 15 resistance and the 9th electric capacity are connected to the PC3 pin of main controller, ten two resistance of described tenth Capacitance parallel connection in serial connection and the two ends of the 15 resistance, the negative electrode of described 5th commutation diode is connected between the 12 resistance and the tenth electric capacity, the anode of described 5th commutation diode is connected with power circuit.
8. the extension set circuit of a kind of refrigeration plant wireless alarm system as claimed in claim 7, it is characterized in that: described sound light alarming circuit comprises the 5th light emitting diode, 6th light emitting diode, 7th light emitting diode, 8th light emitting diode, second triode and buzzer, described 5th light emitting diode, 6th light emitting diode, 7th light emitting diode, 8th light emitting diode is respectively by the 29 resistance, 30 resistance, the PD5 pin of the 31 resistance and the 32 resistance and main controller, PD6 pin, PD7 pin is connected with PB0 pin, described buzzer is connected with the colelctor electrode of the second triode, the base stage of described second triode is connected with the PC0 pin of main controller by the 23 resistance.
9. the extension set circuit of a kind of refrigeration plant wireless alarm system as claimed in claim 8, it is characterized in that: the PB4 pin of described main controller and PB5 pin are connected with dibit charactron by 74HC164 type shift register, exclusion is connected with between described dibit charactron and shift register, 9th pin of described dibit charactron and the tenth pin are connected with the 3rd triode and the 4th triode, and the base stage of described 3rd triode and the 4th triode is connected by the PC1 pin of the 22 resistance and the 21 resistance and main controller and PC2 pin.
10. the extension set circuit of a kind of refrigeration plant wireless alarm system as claimed in any one of claims 1-9 wherein, is characterized in that: described main controller is ATmega48 single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420865417.XU CN204404690U (en) | 2014-12-29 | 2014-12-29 | A kind of extension set circuit of refrigeration plant wireless alarm system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420865417.XU CN204404690U (en) | 2014-12-29 | 2014-12-29 | A kind of extension set circuit of refrigeration plant wireless alarm system |
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| CN204404690U true CN204404690U (en) | 2015-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420865417.XU Expired - Fee Related CN204404690U (en) | 2014-12-29 | 2014-12-29 | A kind of extension set circuit of refrigeration plant wireless alarm system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105091502A (en) * | 2015-09-23 | 2015-11-25 | 合肥华凌股份有限公司 | Power failure prompt device and refrigerator |
| CN106225415A (en) * | 2016-08-01 | 2016-12-14 | 芯海科技（深圳）股份有限公司 | Refrigerator highly energy-consuming analysis based on the Internet and system for prompting and method |
-
2014
- 2014-12-29 CN CN201420865417.XU patent/CN204404690U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105091502A (en) * | 2015-09-23 | 2015-11-25 | 合肥华凌股份有限公司 | Power failure prompt device and refrigerator |
| CN106225415A (en) * | 2016-08-01 | 2016-12-14 | 芯海科技（深圳）股份有限公司 | Refrigerator highly energy-consuming analysis based on the Internet and system for prompting and method |
| CN106225415B (en) * | 2016-08-01 | 2020-01-17 | 芯海科技（深圳）股份有限公司 | Internet-based refrigerator high-energy consumption analysis and reminding system and method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20151229 |
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| EXPY | Termination of patent right or utility model |