CN112837483A - Alarm circuit for preventing outsiders from entering X-ray machine room - Google Patents
Alarm circuit for preventing outsiders from entering X-ray machine room Download PDFInfo
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- CN112837483A CN112837483A CN202110029596.8A CN202110029596A CN112837483A CN 112837483 A CN112837483 A CN 112837483A CN 202110029596 A CN202110029596 A CN 202110029596A CN 112837483 A CN112837483 A CN 112837483A
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- 238000001514 detection method Methods 0.000 claims abstract description 62
- 230000005669 field effect Effects 0.000 claims description 29
- 239000003990 capacitor Substances 0.000 claims description 27
- 230000006378 damage Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 2
- 208000032140 Sleepiness Diseases 0.000 description 1
- 206010041349 Somnolence Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 230000037321 sleepiness Effects 0.000 description 1
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
- G08B13/19—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using infrared-radiation detection systems
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Abstract
The invention relates to the field of medical instruments, in particular to an alarm circuit for preventing an outdoor person from entering an X-ray machine. The X-ray machine room anti-entry alarm circuit can automatically detect whether a person enters an X-ray machine room or not and effectively avoid the damage of X-rays to people. The technical scheme is as follows: an alarm circuit for preventing an outsider from entering an X-ray machine room comprises a power supply circuit, a first key, an electronic switch circuit, a first indicator light circuit and the like; the first key is connected with the input end of the electronic switch circuit, the input end of the first indicator light circuit is connected with the output end of the electronic switch circuit, and the output end of the electronic switch circuit is connected with the input end of the first infrared detection module. The medical staff can know that the X-ray machine room prevents outsiders from entering the alarm circuit to start working through the action of the light-emitting diode VD 1.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to an alarm circuit for preventing an outdoor person from entering an X-ray machine.
Background
The X-ray is mainly applied to preliminary screening of diseases of breasts, bone joints or lungs and the like of a patient, but the X-ray also has certain side effect on a human body, if the irradiation time of the X-ray is too long, certain radiation can be caused to the body of people, so that when the patient takes the X-ray, other people are prevented from intruding into an X-ray room, and the harm to the body of people is avoided.
However, the work of the hospital is busy, medical staff cannot constantly pay attention to whether other people break into the X-ray machine room, if special medical staff are arranged to guard the X-ray machine room, when the X-ray machine room is too long, the medical staff can generate fatigue and sleepiness, other people cannot be effectively prevented from breaking into the X-ray machine room, and therefore the X-ray can be enabled to damage the body of people, and therefore the X-ray machine room capable of automatically detecting whether people break into the X-ray machine room and effectively preventing the X-ray from breaking into the people to cause damage is designed to prevent the other people from entering the alarm circuit.
Disclosure of Invention
In order to overcome the defect that people guard an X-ray machine room can not effectively prevent other people from intruding into the X-ray machine room, so that the X-ray causes harm to the body of people, the technical problem is as follows: the X-ray machine room anti-entry alarm circuit can automatically detect whether a person enters an X-ray machine room or not and effectively avoid the damage of X-rays to people.
The technical scheme is as follows: the utility model provides a warning circuit is prevented to X-ray machine room someone from getting into, including power supply circuit, first button, electronic switch circuit, first indicator circuit, first infrared detection module, alarm circuit and sound and light display circuit, first button is connected with electronic switch circuit's input, the input and the electronic switch circuit's of first indicator circuit output are connected, electronic switch circuit's output and first infrared detection module's input are connected, first infrared detection module's output and alarm circuit's input are connected, sound and light display circuit's output and alarm circuit's input are connected, power supply circuit is first button, electronic switch circuit, first indicator circuit, first infrared detection module, alarm circuit and sound and light display circuit power supply.
Further, still including the infrared detection module of second and gate circuit, electronic switch circuit's output is connected with the input of the infrared detection module of second, the output of first infrared detection module is connected with the input of gate circuit, the output of the infrared detection module of second is connected with the input of gate circuit, the output of gate circuit is connected with warning circuit's input, power supply circuit is the infrared detection module of second and the power supply of gate circuit.
Further, the electronic switch circuit comprises double JK triggers CD4027, resistors R3 to R5, capacitors C1 to C2, an electrolytic capacitor EC1, a resistor R1, a light-touch switch SW1 and an N-channel field effect transistor Q2, wherein a pin 2 of the double JK triggers CD4027 is grounded, a pin 3 of the double JK triggers CD4027 is connected with a resistor R1 and a light-touch switch SW1 in series, the other end of the light-touch switch SW1 is connected with +5V, a pin 4 of the double JK triggers CD4027 is connected with a capacitor C1 and the other end of a capacitor C1 is connected with +5V, a pin 5 of the double JK triggers CD4027 is connected with a pin 6 thereof, a pin 5 of the double JK triggers CD4027 is connected with +5V, a pin 7 of the double JK triggers CD4027 is connected with a resistor R3 in series, the other end of the resistor R3 is connected with a node between the R1 and the light-touch switch SW 6, a pin 5 of the double JK triggers CD4027, a pin 357 of the double JK triggers CD4027 is connected with a pin CD4 and a pin CD 357 of the double JK triggers the capacitor CD 7, the double-JK trigger CD4027 is characterized in that a resistor R5 is connected in parallel with a pin 8 of the double-JK trigger CD4027, an N-channel field effect transistor Q2 is connected in series with the pin 8 of the double-JK trigger CD4027, a drain of the N-channel field effect transistor Q2 is connected with a pin 3 of the double-JK trigger CD4027, a gate of the N-channel field effect transistor Q2 is grounded, a source of the N-channel field effect transistor Q2 is connected with a drain of the N-channel field effect transistor Q2 in parallel with a capacitor C2, and a pin 14 of the double-JK trigger CD4027 is connected.
Further, the first indicator light circuit comprises a light emitting diode VD1, a P-channel field effect transistor Q1, a resistor R2 and a relay RL1, an anode series resistor R2 and a P-channel field effect transistor Q1 of the light emitting diode VD1 are connected in series, a gate of the P-channel field effect transistor Q1 is grounded, a drain of the P-channel field effect transistor Q1 is connected with +5V, a cathode of the light emitting diode VD1 is grounded, a cathode of the light emitting diode VD1 is connected in series with the relay RL1, the other end of the relay RL1 is connected with +5V, a COM end of the relay RL1 is connected with +5V, a power supply end +5V of the first infrared detection module is connected with an NO end of the relay RL1, a GND end of the first infrared detection module is grounded, a power supply end +5V of the second infrared detection module is connected with an NO end of the relay RL1, and a GND end of the.
Further, the or gate circuit comprises a general digital circuit 74LS32, a pin 1 of the general digital circuit 74LS32 is connected with the output end OUT1 of the first infrared detection module, a pin 2 of the general digital circuit 74LS32 is connected with the output end OUT2 of the second infrared detection module, a pin 7 of the general digital circuit 74LS32 is grounded, and a pin 14 of the general digital circuit 74LS32 is connected with + 5V.
Further, the alarm circuit comprises a time base integrated circuit NE555 and a capacitor C3, wherein a pin 1 of the time base integrated circuit NE555 is grounded, a pin 2 of the time base integrated circuit NE555 is connected with a pin 3 of a universal digital circuit 74LS32, a pin 4 of the time base integrated circuit NE555 is connected with a pin 6 of the time base integrated circuit NE555, the pin 4 and the pin 6 of the time base integrated circuit NE555 are connected with +5V, a pin 5 of the time base integrated circuit NE555 is connected with a capacitor C3 in series, the other end of the capacitor C3 is grounded, and a pin 8 of the time base integrated circuit NE555 is connected with + 5V.
Further, the acousto-optic display circuit comprises a light emitting diode VD2, resistors R6-R8, a triode Q3 and a buzzer BZ1, the cathode of the light emitting diode VD2 is grounded, the anode of the light emitting diode VD2 is connected with a resistor R7 in series, the other end of the resistor R7 is connected with the 3 pins of the time-base integrated circuit NE555, one end of the buzzer BZ1 is grounded, the other end of the buzzer BZ1 is connected with a triode Q3 in series, the base of the triode Q3 is connected with a resistor R6 in series, the other end of the resistor R6 is connected with the 7 pins of the time-base integrated circuit NE555, and the emitter of the triode Q3 is connected with + 5V.
Further, the model of the time-base integrated circuit is NE 555.
Further, the model of the double-JK trigger is CD 4027.
Further, the universal digital circuit has a model number of 74LS 32.
The beneficial effects are that: 1. the medical staff can know that the X-ray machine room prevents outsiders from entering the alarm circuit to start working through the action of the light-emitting diode VD 1.
2. The invention can enlarge the detection range and effectively avoid people from intruding into the X-ray machine room through the action of the second infrared detection module and/or the gate circuit.
3. Through the action of the light-emitting diode VD2 and the buzzer BZ1, medical staff can be reminded of other people entering the X-ray room.
Drawings
FIG. 1 is a block diagram of the circuit of the present invention.
Fig. 2 is a schematic circuit diagram of the present invention.
Part names and serial numbers in the figure: 1_ power supply circuit, 2_ first key, 3_ electronic switch circuit, 4_ first indicator lamp circuit, 5_ first infrared detection module, 6_ OR gate circuit, 7_ alarm circuit, 8_ second infrared detection module and 9_ acousto-optic display circuit.
Detailed Description
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Example 1
An alarm circuit for preventing outsiders from entering an X-ray machine room is shown in figure 1 and comprises a power supply circuit 1, a first key 2, an electronic switch circuit 3, a first indicator light circuit 4, a first infrared detection module 5, an alarm circuit 7 and an acousto-optic display circuit 9, wherein the first key 2 is connected with the input end of the electronic switch circuit 3, the input end of the first indicator light circuit 4 is connected with the output end of the electronic switch circuit 3, the output end of the electronic switch circuit 3 is connected with the input end of the first infrared detection module 5, the output end of the first infrared detection module 5 is connected with the input end of the alarm circuit 7, the output end of the acousto-optic display circuit 9 is connected with the input end of the alarm circuit 7, and the power supply circuit 1 is composed of the first key 2, the electronic switch circuit 3, the first indicator light circuit 4, the first infrared detection module 5, The alarm circuit 7 and the acousto-optic display circuit 9 are powered.
When the X-ray machine room prevents outsiders from entering the alarm circuit 7 and being powered on, then medical personnel press the first key 2, the electronic switch circuit 3 starts working, the electronic switch circuit 3 controls the first indicator light circuit 4 and the first infrared detection module 5 to work, when the first infrared detection module 5 detects that someone breaks into the X-ray machine room, the first infrared detection module 5 controls the alarm circuit 7 to work, the alarm circuit 7 controls the acousto-optic display circuit 9 to work, the acousto-optic display circuit 9 can remind the medical personnel that someone breaks into the X-ray machine room, at the moment, the medical personnel need to take out the person breaking into the X-ray machine room and take X-rays for the patient, and when the X-ray machine room prevents outsiders from entering the alarm circuit 7 and being powered off, the electronic switch circuit 3, the first indicator light circuit 4, the first infrared detection module 5, the alarm circuit 7 and the acousto-optic display circuit 9 stop working.
Example 2
On the basis of embodiment 1, as shown in fig. 1, the infrared detection device further includes a second infrared detection module 8 and an or gate circuit 6, an output end of the electronic switch circuit 3 is connected with an input end of the second infrared detection module 8, an output end of the first infrared detection module 5 is connected with an input end of the or gate circuit 6, an output end of the second infrared detection module 8 is connected with an input end of the or gate circuit 6, an output end of the or gate circuit 6 is connected with an input end of an alarm circuit 7, and the power supply circuit 1 supplies power to the second infrared detection module 8 and the or gate circuit 6.
When electronic switch circuit 3 begins work, electronic switch circuit 3 control first infrared detection module 5 and the work of second infrared detection module 8, when first infrared detection module 5 or the work of second infrared detection module 8 detect someone and break into the X-ray computer room, all can control alarm circuit 7 work through OR gate circuit 6, alarm circuit 7 control reputation display circuit 9 works, reputation display circuit 9 can remind medical personnel have other people to break into the X-ray computer room, when electronic switch circuit 3 stop work, first infrared detection module 5, the work of second infrared detection module 8, OR gate circuit 6, alarm circuit 7 and reputation display circuit 9 stop work.
Example 3
An alarm circuit for preventing outsiders from entering an X-ray machine room is disclosed, as shown in FIG. 2, the electronic switch circuit 3 comprises a double JK trigger CD4027, resistors R3-R5, capacitors C1-C2, an electrolytic capacitor EC1, a resistor R1, a light-touch switch SW1 and an N-channel field effect transistor Q2, a 2 pin of the double JK trigger CD4027 is grounded, a 3 pin of the double JK trigger CD4027 is connected in series with a resistor R1 and a light-touch switch SW1, the other end of the light-touch switch SW1 is connected with +5V, a 4 pin of the double JK trigger CD4027 is connected in series with a capacitor C1, the other end of the capacitor C1 is connected with +5V, a 5 pin of the double JK trigger CD4027 is connected with a 6 pin thereof, a 5 pin of the double JK trigger CD4027 is connected with +5V, a pin of the double JK trigger CD 637 is connected with a resistor R3 9, the other end of the double JK trigger CD 4028 is connected with a node of the double JK trigger CD 4028 and a light-touch switch SW 638 and a node of the double JK trigger SW 638, the double-JK trigger CD4027 is connected with an electrolytic capacitor EC1 in parallel through a pin 7 and a pin 8, the double-JK trigger CD4027 is connected with a resistor R5 in parallel through a pin 8 and a pin 4, the double-JK trigger CD4027 is connected with a pin 8 in series through an N-channel field effect transistor Q2, the drain electrode of the N-channel field effect transistor Q2 is connected with a pin 3 of the double-JK trigger CD4027, the grid electrode of the N-channel field effect transistor Q2 is grounded, the source electrode of the N-channel field effect transistor Q2 is connected with a capacitor C2 in parallel through a drain electrode, and the double-JK trigger CD4027 is connected with a pin 14 and a pin + 5V.
The first indicator lamp circuit 4 comprises a light emitting diode VD1, a P-channel field effect transistor Q1, a resistor R2 and a relay RL1, wherein an anode of the light emitting diode VD1 is connected with a resistor R2 and a P-channel field effect transistor Q1 in series, a gate of the P-channel field effect transistor Q1 is grounded, a drain of the P-channel field effect transistor Q1 is connected with +5V, a cathode of the light emitting diode VD1 is grounded, a cathode of the light emitting diode VD1 is connected with a relay RL1 in series, the other end of the relay RL1 is connected with +5V, a COM end of the relay RL1 is connected with +5V, a power supply end +5V of the first infrared detection module is connected with an NO end of the relay RL1, a GND end of the first infrared detection module 5 is grounded, a power supply end +5V of the second infrared detection module 8 is connected with an NO end of the relay RL1, and a GND end of.
The or gate circuit 6 comprises a general digital circuit 74LS32, a pin 1 of the general digital circuit 74LS32 is connected with an output terminal OUT1 of the first infrared detection module 5, a pin 2 of the general digital circuit 74LS32 is connected with an output terminal OUT2 of the second infrared detection module 8, a pin 7 of the general digital circuit 74LS32 is grounded, and a pin 14 of the general digital circuit 74LS32 is connected with + 5V.
The alarm circuit 7 comprises a time-base integrated circuit NE555 and a capacitor C3, wherein a pin 1 of the time-base integrated circuit NE555 is grounded, a pin 2 of the time-base integrated circuit NE555 is connected with a pin 3 of a universal digital circuit 74LS32, a pin 4 of the time-base integrated circuit NE555 is connected with a pin 6 of the time-base integrated circuit NE555, the pin 4 and the pin 6 of the time-base integrated circuit NE555 are both connected with +5V, a pin 5 of the time-base integrated circuit NE555 is connected with the capacitor C3 in series, the other end of the capacitor C3 is grounded, and a pin 8 of the time-base integrated circuit NE555 is connected with + 5V.
The acousto-optic display circuit 9 comprises a light-emitting diode VD2, resistors R6-R8, a triode Q3 and a buzzer BZ1, the cathode of the light-emitting diode VD2 is grounded, the anode series resistor R7 of the light-emitting diode VD2, the other end of the resistor R7 is connected with the 3 pins of the time-base integrated circuit NE555, one end of the buzzer BZ1 is grounded, the other end of the buzzer BZ1 is connected with a triode Q3 in series, the base series resistor R6 of the triode Q3, the other end of the resistor R6 is connected with the 7 pins of the time-base integrated circuit NE555, and the emitter of the triode Q3 is connected with + 5V.
When the X-ray machine room is powered on after an outsider is prevented from entering the alarm circuit 7, a medical worker presses the touch switch SW1, the light-emitting diode VD1 lights up, the relay RL1 is attracted, the first infrared detection module 5 and the second infrared detection module 8 start working, when the first infrared detection module 5 or the second infrared detection module 8 detects that the person enters the X-ray machine room, the 3 pin of the universal digital circuit 74LS32 outputs high level, the 3 pin and the 7 pin of the time-base integrated circuit NE555 output low level, the light-emitting diode VD2 lights up, the buzzer BZ1 sounds, so that the medical worker is reminded of entering the X-ray machine room, the medical worker needs to take out the person entering the X-ray machine room and then shoots the X-ray for the patient, then presses the touch switch SW1 for a long time, the light-emitting diode VD1 is turned off, the relay RL1 is turned off, the light-emitting diode VD2 is turned off, and the buzzer BZ1 does not sound.
The technical principle of the embodiment of the present invention is described above in conjunction with the specific embodiments. The description is only intended to explain the principles of embodiments of the invention and should not be taken in any way as limiting the scope of the embodiments of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive step, and these embodiments will fall within the scope of the present invention.
Claims (10)
1. The utility model provides an X-ray machine room prevents that outsider from getting into alarm circuit, a serial communication port, including power supply circuit (1), first button (2), electronic switch circuit (3), first indicator lamp circuit (4), first infrared detection module (5), alarm circuit (7) and reputation display circuit (9), first button (2) are connected with the input of electronic switch circuit (3), the input of first indicator lamp circuit (4) is connected with the output of electronic switch circuit (3), the output of electronic switch circuit (3) is connected with the input of first infrared detection module (5), the output of first infrared detection module (5) is connected with the input of alarm circuit (7), the output of reputation display circuit (9) is connected with the input of alarm circuit (7), power supply circuit (1) is first button (2), The electronic switch circuit (3), the first indicator light circuit (4), the first infrared detection module (5), the alarm circuit (7) and the acousto-optic display circuit (9) are powered.
2. The outdoor warning circuit for preventing outsiders from entering the X-ray machine according to claim 1, further comprising a second infrared detection module (8) and an OR gate circuit (6), wherein the output end of the electronic switch circuit (3) is connected with the input end of the second infrared detection module (8), the output end of the first infrared detection module (5) is connected with the input end of the OR gate circuit (6), the output end of the second infrared detection module (8) is connected with the input end of the OR gate circuit (6), the output end of the OR gate circuit (6) is connected with the input end of the warning circuit (7), and the power supply circuit (1) supplies power to the second infrared detection module (8) and the OR gate circuit (6).
3. The alarm circuit for preventing the entry of outsiders into an X-ray machine room as claimed in claim 2, wherein the electronic switch circuit (3) comprises a double JK trigger CD4027, resistors R3 to R5, capacitors C1 to C2, an electrolytic capacitor EC1, a resistor R1, a light-touch switch SW1 and an N-channel field effect transistor Q2, wherein a 2 pin of the double JK trigger CD4027 is grounded, a 3 pin of the double JK trigger CD4027 is connected in series with a resistor R1 and a light-touch switch SW1, the other end of the light-touch switch SW1 is connected with +5V, a 4 pin of the double JK trigger CD4027 is connected in series with a capacitor C1, the other end of the capacitor C1 is connected with +5V, a 5 pin of the double JK trigger CD4027 is connected with a 6 pin thereof, a 5 pin of the double JK trigger CD4027 is connected with +5V, the other end of the double JK trigger CD4027 is connected with a resistor R3 and a light-touch switch SW 4, a node of the double JK trigger CD4027 is connected with a resistor R3 and a light-touch switch SW 4, the other end of the resistor R4 is connected with an 8 pin of a double JK trigger CD4027, a 7 pin of the double JK trigger CD4027 is connected with an 8 pin of the double JK trigger CD4027 in parallel with an electrolytic capacitor EC1, an 8 pin of the double JK trigger CD4027 is connected with a 4 pin of the double JK trigger CD4027 in parallel with a resistor R5, an 8 pin of the double JK trigger CD4027 is connected with an N-channel field effect transistor Q2 in series, a drain electrode of the N-channel field effect transistor Q2 is connected with a 3 pin of the double JK trigger CD4027, a grid electrode of the N-channel field effect transistor Q2 is grounded, a source electrode of the N-channel field effect transistor Q2 is connected with a drain electrode of the N-channel field effect transistor Q2 in parallel with a capacitor.
4. An alarm circuit for preventing outsiders from entering an X-ray machine room as claimed in claim 3, wherein said first indicator light circuit (4) comprises a light emitting diode VD1, a P-channel field effect transistor Q1, a resistor R2 and a relay RL1, an anode series resistor R2 and a P-channel field effect transistor Q1 of said light emitting diode VD1, a gate of said P-channel field effect transistor Q1 is grounded, a drain of said P-channel field effect transistor Q1 is connected with +5V, a cathode of said light emitting diode VD1 is grounded, a cathode of said light emitting diode VD1 is connected with a relay RL1 in series, the other end of said relay RL1 is connected with +5V, a COM +5V end of said relay RL1 is connected with a NO end of a relay RL1, a power end of said first GND infrared detection module (5) is grounded, a power end of said second infrared detection module (8) +5V is connected with a NO end of a relay RL1, and the GND end of the second infrared detection module (8) is grounded.
5. The alarm circuit for preventing outsiders from entering an X-ray machine room as claimed in claim 4, wherein the OR gate circuit (6) comprises a general digital circuit 74LS32, a pin 1 of the general digital circuit 74LS32 is connected with an output end OUT1 of the first infrared detection module (5), a pin 2 of the general digital circuit 74LS32 is connected with an output end OUT2 of the second infrared detection module (8), a pin 7 of the general digital circuit 74LS32 is grounded, and a pin 14 of the general digital circuit 74LS32 is connected with + 5V.
6. The alarm circuit for preventing outsiders from entering the X-ray machine room as claimed in claim 5, wherein said alarm circuit (7) comprises a time base integrated circuit NE555 and a capacitor C3, wherein a pin 1 of said time base integrated circuit NE555 is grounded, a pin 2 of said time base integrated circuit NE555 is connected with a pin 3 of a general digital circuit 74LS32, a pin 4 of said time base integrated circuit NE555 is connected with a pin 6 thereof, a pin 4 of said time base integrated circuit NE555 and a pin 6 thereof are both connected with +5V, a pin 5 of said time base integrated circuit NE555 is connected with a capacitor C3 in series, the other end of the capacitor C3 is grounded, and a pin 8 of said time base integrated circuit NE555 is connected with + 5V.
7. The alarm circuit for preventing the entry of outsiders into an X-ray machine room as claimed in claim 6, wherein the acousto-optic display circuit (9) comprises a light emitting diode VD2, resistors R6-R8, a triode Q3 and a buzzer BZ1, the cathode of the light emitting diode VD2 is grounded, the anode of the light emitting diode VD2 is connected with a resistor R7 in series, the other end of the resistor R7 is connected with the pin 3 of the time base integrated circuit NE555, one end of the buzzer BZ1 is grounded, the other end of the buzzer BZ1 is connected with a triode Q3 in series, the base of the triode Q3 is connected with a resistor R6 in series, the other end of the resistor R6 is connected with the pin 7 of the time base integrated circuit NE555, and the emitter of the triode Q3 is connected with + 5V.
8. The alarm circuit for preventing the entry of outsiders into an X-ray machine room as claimed in claim 6, wherein the model of the time base integrated circuit is NE 555.
9. The alarm circuit for preventing the entry of outsiders into an X-ray machine room as claimed in claim 3, wherein the model of the double JK trigger is CD 4027.
10. The alarm circuit for preventing the entry of outsiders in an X-ray machine room as claimed in claim 5, wherein the type of the universal digital circuit is 74LS 32.
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| CN202110029596.8A CN112837483A (en) | 2021-01-11 | 2021-01-11 | Alarm circuit for preventing outsiders from entering X-ray machine room |
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| CN202110029596.8A CN112837483A (en) | 2021-01-11 | 2021-01-11 | Alarm circuit for preventing outsiders from entering X-ray machine room |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113268032A (en) * | 2021-06-17 | 2021-08-17 | 曹学志 | Control circuit of constant-temperature injection liquid medicine heating device |
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| CN107422663A (en) * | 2017-05-25 | 2017-12-01 | 深圳市彬讯科技有限公司 | A kind of disinfection system of the automated biological identification based on high in the clouds control |
| CN208741551U (en) * | 2017-05-25 | 2019-04-16 | 深圳市彬讯科技有限公司 | A kind of sterilizing unit of multi-faceted automated biological identification |
| CN207264536U (en) * | 2017-10-24 | 2018-04-20 | 衢州职业技术学院 | A kind of medical radiation section isolation warning device |
| CN110327513A (en) * | 2019-08-16 | 2019-10-15 | 阳权 | A kind of infusion alarming circuit |
| CN211375764U (en) * | 2020-01-15 | 2020-08-28 | 罗永波 | Automatic urine-wetting alarm circuit |
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| CN113268032A (en) * | 2021-06-17 | 2021-08-17 | 曹学志 | Control circuit of constant-temperature injection liquid medicine heating device |
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