CN204256919U - IR alarm system - Google Patents
IR alarm system Download PDFInfo
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- CN204256919U CN204256919U CN201420779133.9U CN201420779133U CN204256919U CN 204256919 U CN204256919 U CN 204256919U CN 201420779133 U CN201420779133 U CN 201420779133U CN 204256919 U CN204256919 U CN 204256919U
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- circuit
- control circuit
- alarm system
- shutoff
- warning
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Abstract
The utility model relates to a kind of IR alarm system, comprising: control circuit, for monitoring target component and sending alerting signal when target component exceedes predetermined threshold value; Warning circuit, reports to the police for sending after receiving alerting signal and enters alarm condition; Testing circuit, exports to control circuit for launching infrared signal when warning circuit is in alarm condition and being converted to shutoff service data information after detecting the infrared signal that the internal reflection of region, target location is returned; Control circuit also turns off operation for judging whether to exist according to shutoff service data information, and sends cut-off signals to warning circuit when shutoff operation exists; Warning circuit turns off after receiving cut-off signals reports to the police thus removes alarm condition.Above-mentioned IR alarm system user only need carry out shutoff and operate the reflection that can realize infrared signal in region, target location, and then produces cut-off signals control shutoff warning, and without the need to directly contacting IR alarm system, simple to operation.
Description
Technical field
The utility model relates to technical field of medical instruments, particularly relates to a kind of IR alarm system.
Background technology
Traditional IR alarm system, after entering alarm condition, needs to operate the cutoff device on IR alarm system manually to turn off or remove this alarm condition.This control mode brings very large inconvenience to the use of people, and particularly when medical personnel are carrying out in surgical procedure, this shutoff mode just seems particularly troublesome.
Utility model content
Based on this, be necessary for the problems referred to above, a kind of easy to operate IR alarm system is provided.
A kind of IR alarm system, comprising: control circuit, for monitoring target component and sending alerting signal when described target component exceedes predetermined threshold value; Warning circuit, reports to the police for sending after receiving described alerting signal and enters alarm condition; Testing circuit, exports to described control circuit for launching infrared signal when described warning circuit is in alarm condition and being converted to shutoff service data information after detecting the infrared signal that the internal reflection of region, target location is returned; Described control circuit also turns off operation for judging whether according to described shutoff service data information to exist, and sends cut-off signals to described warning circuit when shutoff operation exists; Described warning circuit turns off after receiving described cut-off signals reports to the police thus removes alarm condition.
Wherein in an embodiment, described control circuit is by described shutoff service data information and predetermined target value being compared, and when described shutoff service data information is greater than described predetermined target value, described control circuit judges to there is shutoff operation.
Wherein in an embodiment, region, described target location is the scope apart from described infrared signal transmitting place 15 ~ 30 centimetres.
Wherein in an embodiment, described testing circuit is periodically outwards launched infrared signal and is converted to after detecting the infrared signal that the internal reflection of region, target location is returned and turns off service data information and export to described control circuit.
Wherein in an embodiment, described warning circuit sends warning by least one in light signal or acoustical signal.
Wherein in an embodiment, described warning circuit comprises the first divider resistance, the second divider resistance, operational amplifier, the first filter capacitor and loudspeaker; Described first divider resistance one end is connected with described control circuit, for receiving the alerting signal that described control circuit exports; The other end of described first divider resistance is connected ground connection after the second divider resistance; The other end of described first divider resistance is also connected with the in-phase input end of described operational amplifier; The reverse inter-input-ing ending grounding of described operational amplifier; The output terminal of described operational amplifier is connected after the first filter capacitor and is connected with the power input of described loudspeaker; The earth terminal ground connection of described loudspeaker.
Wherein in an embodiment, described testing circuit comprises the first infrared transmitter and digital sensor; The positive pole of described first infrared transmitter is connected with power supply input end, and negative electrode is connected with described digital sensor; The serial data output pin of described digital sensor is connected with described control circuit respectively with serial clock signal pin.
Wherein in an embodiment, described digital sensor is integrated with ambient light sensor and proximity sense.
Wherein in an embodiment, also comprise display circuit and display screen, described display circuit shows for driving display screen; Described testing circuit is also for detecting environment illumination intensity and exporting brightness value; Described control circuit also adjusts for controlling the brightness of described display circuit to described display screen according to described brightness value.
Above-mentioned IR alarm system when warning circuit is in alarm condition, testing circuit outwards can launch infrared signal and the infrared signal that the internal reflection of region, target location is returned is detected and be converted to turn off service data information after export to control circuit.Control circuit can judge whether there is shutoff operation according to this shutoff service data information, and judging to exist turn off operation after export cut-off signals to warning circuit, make warning circuit stop alarm, remove alarm condition.Above-mentioned IR alarm system user only need carry out the reflection that shutoff operation (as waving) can realize infrared signal in region, target location, and then produce cut-off signals control shutoff warning, and without the need to directly contacting IR alarm system, simple to operation.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the IR alarm system in an embodiment;
Fig. 2 is the structured flowchart of the IR alarm system in another embodiment;
Fig. 3 be embodiment illustrated in fig. 2 in IR alarm system in the circuit theory diagrams of warning circuit;
Fig. 4 be embodiment illustrated in fig. 2 in IR alarm system in the circuit theory diagrams of testing circuit.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Figure 1 shows that the structured flowchart of the IR alarm system in an embodiment, comprise control circuit 110, warning circuit 120 and testing circuit 130.Wherein, control circuit 110 is connected with warning circuit 120 and observation circuit 130 respectively.
Control circuit 110 is for detecting target component and sending alerting signal when target component exceedes predetermined threshold value.The setting of target component can set according to the object of IR alarm system specific service.Such as, when IR alarm system is used for carrying out monitoring alarm to baby's heat preserving table, need heat preserving table temperature value and uninterrupted power source (Uninterruptible Power System, UPS) electricity and other warning messages are monitored, and namely target component comprises the warning message parameter such as temperature and uninterrupted power source electricity.
The alerting signal that warning circuit 120 exports for reception control circuit 110 also sends and reports to the police and enter alarm condition after receiving this alerting signal.Warning circuit 120 can be reported to the police by a kind of in light signal or acoustical signal or the combination of the two.In the present embodiment, warning circuit 120 sends warning by acoustical signal.
Testing circuit 130 turns off service data information export to control circuit 110 for outwards sending infrared signal when warning circuit 120 is in alarm condition and being converted to after detecting the infrared signal that the internal reflection of region, target location is returned.In the present embodiment, region, target location is distance infrared emission place is the scope of 15 ~ 30 centimetres.Testing circuit 130 periodically outwards can send infrared signal, and its transmitting cycle can set as required.
This shutoff service data information and predetermined target value also for the shutoff service data information that receiving test circuit 130 exports, and compare by control circuit 110, thus judge whether to there is shutoff operation.In the present embodiment, shutoff operation comprises the operation can reflected infrared signal as waved etc.Particularly, when there is not shutoff operation in region, target location, the infrared signal that target location regional reflex is returned is less, therefore its shutoff service data information produced is also comparatively faint, be less than predetermined target value, therefore control circuit 110 can be judged currently not turn off operation, thus does not operate warning circuit 120.When the existence of region, target location waits shutoff operation as waved, the existence operated due to shutoff can be launched infrared signal, and the infrared signal that testing circuit 130 is detected changes rapidly.When the shutoff service data information after the infrared signal fired back is changed is greater than predetermined target value, namely control circuit 110 judges to there is shutoff operation, thus output cut-off signals is reported to the police to warning circuit 120 shutoff and removes alarm condition.In the present embodiment, after alarm condition is removed, testing circuit 130 quits work.In the present embodiment, by presetting a desired value in control circuit 110, the erroneous judgement that control circuit 110 operates shutoff can be avoided.Meanwhile, predetermined target value can set according to the infrared signal intensity of the reflectivity of target object and transmitting.Such as, when the shutoff operation of IR alarm system be only set as user wave operation time, can set this desired value according to the intensity of the infrared signal of the reflectivity of hand and transmitting.Only have when be input to turn off service data information near this desired value time just can judge that it exists and turn off operation.
Above-mentioned IR alarm system, when warning circuit 120 is in alarm condition, user only need carry out in region, target location waiting shutoff to operate the shutoff that can realize warning circuit 120 as waved, and without the need to directly contacting IR alarm system, simple to operation.Especially in Medical Devices, when medical personnel are when performing the operation, if there is abnormal alarm, medical personnel only need to carry out to region, target location waving to wait shutoff can remove warning, simple to operation.
Fig. 2 is the structured flowchart of the IR alarm system in another embodiment, comprises control circuit 210, warning circuit 220, testing circuit 230, display circuit 240 and display screen 250.Wherein, warning circuit 220, testing circuit 230 and display circuit 240 are connected with control circuit 210 respectively.Display screen 250 is connected with display circuit 240.
In the present embodiment, control circuit 210 adopts the integrated chip of STM32 series, and it is built-in with the flash memory of 32K ~ 128K, and fundamental clock frequency is 36MHz, and the clock frequency of enhancement mode series can reach 72MHz.During clock frequency 72MHz, from flash memory run time version, the power consumption of STM32 is only 36mA, and power consumption is lower.Particularly, it comprises 3 UART interface, 1 USB interface and 1 SPI interface, and have more powerful expanded function ability, data transmission capabilities is higher.Control circuit 210 is when detecting that target component exceedes predetermined threshold value (as too high in temperature or UPS circuit is too low or other warning messages), and control circuit 210 can receive this warning message by serial ports 232 or ADC (logical order) and produce alerting signal according to this warning message exports to warning circuit 220.Particularly, this alerting signal is a level signal.
The circuit theory of warning circuit 220 as shown in Figure 3.Warning circuit 220 comprises the first divider resistance R147, the second divider resistance R148, operational amplifier U56, the first filter capacitor C244 and loudspeaker LS1.Wherein, one end of the first divider resistance R147 is connected with control circuit 210, for the alerting signal that reception control circuit 210 exports.The other end of the first divider resistance R147 is also connected ground connection after the second divider resistance R148.The other end of the first divider resistance R147 is also connected with the in-phase input end IN+ of operational amplifier U56.The inverting input IN-ground connection of operational amplifier U56.The output terminal VOUT of operational amplifier U56 connects after the first electric capacity C244 and is connected with the power input VCC of loudspeaker LS1.The earth terminal GND ground connection of loudspeaker LS1.In the present embodiment, the model of operational amplifier U56 is LM386.The power end VS of operational amplifier U56 is also connected with power supply VCC.The power end VS of operational amplifier U56 is ground connection after series filtering electric capacity C149 also.The output terminal VOUT of operational amplifier U56 is ground connection after resistance in series R144 and electric capacity C150 also.The alerting signal that control circuit 210 sends is sent to operational amplifier U56 and carries out amplification process after the dividing potential drop of the first divider resistance R147 and the second divider resistance R148.The signal exported from operational amplifier U56 is input to loudspeaker LS1 after electric capacity C244 filtering, just can realize the driving to loudspeaker LS1, thus makes loudspeaker LS1 send acoustical signal to carry out alarm state.
Testing circuit 230 outwards can send infrared signal and detect the infrared signal that target location regional reflex is returned and be converted to shutoff service data information after warning circuit 220 enters alarm condition exports to control circuit 210.The circuit theory of testing circuit 230 as shown in Figure 4.Testing circuit comprises the first infrared transmitter D11, digital sensor U5, resistance R14 ~ R20 and electric capacity C17 and C18.Particularly, the positive pole of the first infrared transmitter D11 is connected with DC supply input D+3.3V, and the positive pole of the first infrared transmitter D11 is ground connection after series capacitance C17 also.The negative pole of the first infrared transmitter D11 is connected with digital sensor U5.First infrared transmitter D11 is used for outwards launching infrared signal.Serial data output pin SDA, the serial clock signal pin SCL of digital sensor U5 and look-at-me pin INT are connected with control circuit 210 after resistance in series R17, resistance R18 and resistance R19 respectively.Serial data output pin SDA, serial clock signal pin SCL and look-at-me pin INT are connected with DC supply input D+3.3V after also distinguishing resistance in series R14, resistance R15 and resistance R16.Be connected with DC supply input D+3.3V after the power end VDD resistance in series R20 of digital sensor U5.
Digital sensor U5 be used for detecting the infrared signal reflected in region, target location and be converted to turn off service data information after export to control circuit 210 by serial data output pin SDA, serial clock signal pin SCL.Particularly, when loudspeaker LS1 is in alarm condition, user carries out in region, target location to launch infrared signal when turning off operation as waved etc., thus make digital sensor U5 to the rapid change of the intensity of illumination red line signal fired back being detected, and this illumination intensity information is converted to turn off service data information after export to control circuit 210 by serial data output pin SDA, serial clock signal pin SCL.According to turning off service data information, control circuit 210 judges that turning off operation exists or after its effect of shutoff operation, export cut-off signals to warning circuit 220, realize the closedown to alerting signal.In the present embodiment, cut-off signals is level signal.
In the present embodiment, the digital sensor U5 that testing circuit 230 adopts is digital SFH7770 sensor.Numeral SFH7770 sensor by traditionally mutually independently the function of ambient light sensor and proximity sense roll into one, physical dimension is 2.8x2.8x0.9mm only, takes up room very little.Meanwhile, owing to combining two kinds of functions, this sensor not only usefulness is higher, and its operation only needs the electric current of consumption 350 μ A, and be more only 5 μ A under standby mode, power consumption is lower.
Proximity sense utilizes the reflection carried out independent infrared LED emitted light, can not only detect surrounding objects, and can perceptual object near or away from.This sensor is 1 μ W/cm in intensity of illumination
2to 10mW/cm
2in scope, sensitivity is higher, can reach 30cm remote in operate.Export by means of its numeral, the High Speed I up to 3.4MHz supported by this sensor
2c bus.
Ambient light sensor can be measured environment illumination intensity, and returns a brightness value between 3 to 65000 luxs (lux), and exports to control circuit 210.The brightness that control circuit 210 controls display circuit 240 pairs of display screens 250 according to this brightness value adjusts, and this makes display screen 250 more easily read.The brightness of display screen 250 simultaneously can regulate with environment illumination intensity, display screen 250 brightness can be made to be in perfect condition, can not cause the waste of energy, saves electricity consumption, adds the time interval of battery charging.In addition, 50-60Hz power supply correlated fluctuations in the environmental light brightness that this sensor produces fluorescent light etc. is also insensitive, and anti-interference is stronger.
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this instructions is recorded.
The above embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (9)
1. an IR alarm system, is characterized in that, comprising:
Control circuit, for monitoring target component and sending alerting signal when described target component exceedes predetermined threshold value;
Warning circuit, reports to the police for sending after receiving described alerting signal and enters alarm condition;
Testing circuit, exports to described control circuit for launching infrared signal when described warning circuit is in alarm condition and being converted to shutoff service data information after detecting the infrared signal that the internal reflection of region, target location is returned;
Described control circuit also turns off operation for judging whether according to described shutoff service data information to exist, and sends cut-off signals to described warning circuit when shutoff operation exists; Described warning circuit turns off after receiving described cut-off signals reports to the police thus removes alarm condition.
2. IR alarm system according to claim 1, it is characterized in that, described control circuit is by described shutoff service data information and predetermined target value being compared, and when described shutoff service data information is greater than described predetermined target value, described control circuit judges to there is shutoff operation.
3. IR alarm system according to claim 1, is characterized in that, region, described target location is the scope apart from described infrared signal transmitting place 15 ~ 30 centimetres.
4. IR alarm system according to claim 1, it is characterized in that, described testing circuit is periodically outwards launched infrared signal and is converted to after detecting the infrared signal that the internal reflection of region, target location is returned and turns off service data information and export to described control circuit.
5. IR alarm system according to claim 1, is characterized in that, described warning circuit sends warning by least one in light signal or acoustical signal.
6. IR alarm system according to claim 1, is characterized in that, described warning circuit comprises the first divider resistance, the second divider resistance, operational amplifier, the first filter capacitor and loudspeaker; Described first divider resistance one end is connected with described control circuit, for receiving the alerting signal that described control circuit exports; The other end of described first divider resistance is connected ground connection after the second divider resistance; The other end of described first divider resistance is also connected with the in-phase input end of described operational amplifier; The reverse inter-input-ing ending grounding of described operational amplifier; The output terminal of described operational amplifier is connected after the first filter capacitor and is connected with the power input of described loudspeaker; The earth terminal ground connection of described loudspeaker.
7. IR alarm system according to claim 1, is characterized in that, described testing circuit comprises the first infrared transmitter and digital sensor; The positive pole of described first infrared transmitter is connected with power supply input end, and negative electrode is connected with described digital sensor; The serial data output pin of described digital sensor is connected with described control circuit respectively with serial clock signal pin.
8. IR alarm system according to claim 7, is characterized in that, described digital sensor is integrated with ambient light sensor and proximity sense.
9. IR alarm system according to claim 8, is characterized in that, also comprises display circuit and display screen, and described display circuit shows for driving display screen; Described testing circuit is also for detecting environment illumination intensity and exporting brightness value; Described control circuit also adjusts for controlling the brightness of described display circuit to described display screen according to described brightness value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420779133.9U CN204256919U (en) | 2014-12-10 | 2014-12-10 | IR alarm system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420779133.9U CN204256919U (en) | 2014-12-10 | 2014-12-10 | IR alarm system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204256919U true CN204256919U (en) | 2015-04-08 |
Family
ID=52961204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420779133.9U Active CN204256919U (en) | 2014-12-10 | 2014-12-10 | IR alarm system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204256919U (en) |
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2014
- 2014-12-10 CN CN201420779133.9U patent/CN204256919U/en active Active
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| GR01 | Patent grant |